Panasonic Mp3 Cd Player Receiver Cq C300u Operating Instructions

							
CQ-C300U21
English

• You are recommended to minimize the chances of 
making a disc that contains both CD-DA files and 
MP3/WMA files.
• 
If CD-DA files are on the same disc as MP3 or WMA 
files, the songs may not play in the intended order, 
or some songs may not play at all.
• 
When storing MP3 data and WMA data on the same 
disc, use different folders for each data.
•  Do not record files other than MP3/WMA files and 
unnecessary folder on a disc.
•  The name of an MP3/WMA file should be added by 
rules as shown in the following descriptions and also 
comply with the rules of each file system. 
•  The file extension “.mp3” or “.wma” should be 
assigned to each file depending on the file format. • 
You may encounter trouble in playing MP3/WMA 
files or displaying the information of MP3/WMA 
files recorded with certain writing software or CD 
recorders.
•  This unit does not have a play list function.
•  Although Multi-session recording is supported, the use 
of Disc-at-Once is recommended.
Supported file systems
ISO 9660 Level 1/Level 2, Apple Extension to ISO 9660, 
Joliet, Romeo
Note: Apple HFS, UDF 1.50, Mix CD and CD Extra are 
not supported.
Recording MP3/WMA Files on a CD-media
Compression formats
(Recommendation: “Points to remember when making MP3/WMA files” on the previous \
page)
Compression methodBit rateVBRSampling frequency
MPEG 1 audio layer 3 (MP3)32 k – 320 kbpsYes32, 44.1, 48 kHz
MPEG 2 audio layer 3 (MP3)8 k – 160 kbpsYes16, 22.05, 24 kHz
Windows Media Audio Ver. 7, 8, 9*32 k – 192 kbpsYes32, 44.1, 48 kHz
* WMA 9 Professional/LossLess/Voice are not supported. 
Folder Selection Order/File Playback Order
Copyright
It is prohibited by copyright laws to copy, distribute and 
deliver copyrighted materials such as music without the 
approval of copyright holder except enjoying yourself 
personally. 
No warranty
Above description complies with our investigations 
as of September 2007. It has no warranty for 
reproducibility and displayability of MP3/WMA.
Notes on MP3/WMA (continued)
MP3/WMA Player
MP3/WMA Player
Maximum number of files/folders
• Maximum number of files: 999
•  Maximum number of files in one folder: 255
•  Maximum depth of trees: 8
•  Maximum number of folders: 255 (Root folder is 
included.)
Notes:
• You can shorten the duration between data read and 
playback by decreasing the quantity of files or folders, 
or the depth of the hierarchy.
•  This unit counts the number of folders irrespective of 
the presence or absence of an MP3/WMA file.
•  If the selected folder does not contain any MP3/WMA 
files, the nearest MP3/WMA files in the order of 
playback will be played.
•  Playback order may be different from other MP3/WMA 
players even if the same disc is used.
•  “ROOT” appears when displaying the root folder name.
1
14
5
6
2
3
8
7
8
Root folder (Root Directory)
Folder	Selection	
In the order 
Tree 1Tree 2Tree 3Tree 4Tree 8 (Max.)
File	Selection	In the order  
						

							
CQ-C300U22

Audio Setting
1 Press [VOL] ( PUSH	SEL: 
Select) to open the menu.
2 Press [VOL] ( PUSH	SEL: Select) to 
select a mode to be adjusted. 
3 Turn [VOL] clockwise 
or counterclockwise to 
adjust.
Notes: 	
•  The sequence and contents of setting items may 
depend on the conditions of devices to be connected. 
For further information, refer to the System Upgrade 
Guidebook or the instruction manuals for the devices 
to be connected. 
•  To return to the regular mode, press 
[DISP]. 
•  If no operation takes place for more than 5 seconds in 
audio setting (2 seconds in the volume adjustment), 
the display returns to the regular mode. 
•  The volume can also be adjusted directly using 
[VOL] 
on the main unit. ( page 12) 
•  Please refer to page 13 for SQ selection. 
Volume Adjustment
(Setting range: 0 to 40, Default: 18)
1: Up2: Down
Bass Adjustment
(Setting range: 12 dB to 12 dB, 2 dB Step, Default: 
Bass 0 dB)
1: Up2: Down
 Treble Adjustment
(Setting range: 12 dB to 12 dB, 2 dB Step, Default: 
Treble 0 dB)
1: Up2: Down
Note: Setting of SQ, bass/treble and volume are 
influenced one another. If such an influence mentioned 
above causes distortion to the audio signal, readjust 
bass/treble or volume. 
Balance Adjustment
(Setting range: L (left) 15 to R (right) 15 and Center, 
Default: Center)
1: Right enhanced2: Left enhanced
Fader Adjustment
(Setting range: R (rear) 15 to F (front) 15 and Center, 
Default: Center)
1: Front enhanced2: Rear enhanced
Subwoofer Level Adjustment
(Setting range : mute (), 6 dB to 6 dB, 2 dB 
Step, Default: 0 dB)
1: Up2: Down
Adjustment to each speaker and an optional subwoofer
Audio Menu Display 
						

							
CQ-C300U23
English

Function Setting
Audio Setting, Function Setting
1 Hold down [VOL] ( PUSH	
SEL: Select) for 2. sec. or 
more to open the menu.
2 Press [VOL] ( PUSH	SEL: Select) to 
select a mode to be adjusted. 
3 Turn [VOL] clockwise 
or counterclockwise to 
adjust.
Notes: 	
•  The sequence and contents of setting items may 
depend on the conditions of devices to be connected. 
For further information, refer to the System Upgrade 
Guidebook or the instruction manuals for the devices 
to be connected. 
•  To return to the regular mode, press 
[DISP]. 
•  If no operation takes place for more than 5 seconds 
in function setting, the display returns to the regular 
mode. 
Demonstration
You can set up the monitor to display or hide the 
demonstration screen. 
1: On (Default)
2: Off
Note: Button operation with either the main unit or 
remote control allows users to cancel the demonstration 
screen for 20 seconds and enable the selected operation 
even in the demo-on mode. 
Level Meter Display Patterns (PATTERN)
Variety: 4 types, OFF 
: Off
: Pattern 1 (Default)
: Pattern 2
: Pattern 3
: Pattern 4
Mute/Attenuation
You can select mute or attenuation. 
1: Volume down by 10 
steps
2: Volume off (Default)
AUX1 Skip
If AUX1 is not used, the AUX1 mode is skipped when 
selecting the source. 
1: On (Skip disabled.) 
(Default)
2: Off (Skip enabled.)
Function Menu Display 
						

							
CQ-C300U24

Troubleshooting
If You Suspect Something Wrong
Check and take steps as described below.
If the described suggestions do not solve the problem, it is 
recommended to take the unit to your nearest authorized 
Panasonic Servicenter. The product should be serviced only by 
qualified personnel. Please refer the checking and the repair to 
professionals. Panasonic shall not be liable for any accidents 
arising out of neglect of checking the unit or your own repair 
after your checking.
Never take measures especially those other than indicated by 
italic letters in “Possible solution” described below because 
those are too dangerous for users to handle themselves.
ProblemPossible cause  Possible solution
No power to the unit
The power cord (battery, power and ground) is connected in the wrong way.
 Check the wiring.
Fuse blows out.
  Eliminate the cause of fuse blowout and replace the fuse with new one. 
Consult your dealer. 
Sound is not 
generated.
MUTE is set to ON.
  Set MUTE to OFF.
The wiring of speaker lines are not correct, or a break or poor contact \
arises.
  Check the wiring in accordance with the wiring diagram. ( Installation 
Instructions)
Noise
There is an electromagnetic-wave generator such as a cellular phone near\
 the unit 
or its electrical lines.
  Keep an electromagnetic-wave generator such as a cellular phone away 
from the unit and the wiring of the unit. In case that noise cannot be 
eliminated due to the wiring harness of the car, consult your dealer.
The contact of the ground lead is poor.
  Make sure that the ground lead is connected to an unpainted part of the \
chassis securely.
Noise is made in 
step with engine 
revolutions.
Alternator noise comes from the car.
  Change the wiring position of the ground lead.
  Mount a noise filter.
Common
	Warning
• Do not use the unit in an irregular condition, for example, 
without sound, or with smoke or a foul smell, which can 
cause ignition or electric shock. Immediately stop using 
the unit and consult your dealer.
•  Never try to repair the unit by yourself because it is 
dangerous to do so. 
						

							
CQ-C300U25
English

Troubleshooting
Troubleshooting
ProblemPossible cause  Possible solution
Some operations are 
not executable.
Some operations are not executable in particular modes such as menu mode\
.
  Read the operating instructions carefully and cancel the mode. If the un\
it is 
still out of order, consult your dealer.
No sound from 
speaker(s)
Balance/Fader setting is not appropriate.
  Readjust Balance/Fader.
There is a break, a short circuit, poor contact or wrong wiring regarding the 
speaker wiring.
  Check the speaker wiring.
The speaker channels 
are reversed between 
right and left.
The speaker wiring is confused between right and left.
  Perform the speaker wiring in accordance with the wiring diagram.
The sound field is not 
clear in the stereo 
mode.
Central sound does not 
settled.
The plus and minus terminals at right and left channels of speakers are \
connected 
reversely.
  Perform the speaker wiring in accordance with the wiring diagram.
The power fails 
unintentionally.
The safety device works.
  Consult your dealer, or your nearest Panasonic Servicenter.
Poor reception or 
noise
Antenna installation or wiring of antenna cable is faulty.
  Check whether the antenna mounting position and its wiring are correct. \
In 
addition, check to see whether the antenna ground is securely connected \
to 
the chassis.
No power is supplied to the antenna amplifier (when using a film an\
tenna, etc.).
  Check the wiring of the antenna power lead.
The number of auto 
preset stations is less 
than 6.
The number of receivable stations is less than 6.
  Move to an area where receivable stations number is maximum, and try 
presetting.
Preset stations cannot 
be stored.
The contact of the battery lead is poor, or the battery lead is not always powered.
  Make sure that the battery lead is connected securely, and preset stations 
again.
Common (continued)
Radio 
						

							
CQ-C300U26

ProblemPossible cause  Possible solution
No playback or disc 
ejected
The disc is inserted upside down.
  Insert a disc correctly.
There is a flaw or foreign material on the disc.
  Remove the foreign material, or use a flawless disc.
Sound skipping or 
noise
There is a flaw or foreign material on the disc.
  Remove the foreign material, or use a flawless disc.
Sound skipping due to 
vibration
The unit is not sufficiently secured.
  Secure the unit to the console box.
The unit is tilted at over 30˚ in the front-to-end direction.
  Make the angle 30˚ or less.
Disc unejectable
Something such as a peeled label obstructs the disc coming out.
  Consult your dealer.
The microcontroller in the unit operates abnormally due to noise or othe\
r factors.
  Unplug the power cord and plug it again. In case the unit is still out of 
order, consult your dealer.
No playback or disc 
ejected
The disc has unplayable formatted data.
  Refer to the description about MP3/WMA for playable sound data except 
CD-DA (i.e. music CD).
The CD-R/RWs that 
are playable on 
other devices are not 
playable on this unit.
The playability of some CD-R/RWs may depend on the combination of media,\
 
recording software and recorder to be used even if these CD-R/RWs are pl\
ayable 
on other devices such as a PC.
  Make CD-R/RWs in different combination of media, recording software and \
recorder after referring to the description about MP3/WMA.
Sound skipping or 
noise
There is a flaw or foreign material on the disc.
  Remove the foreign material, or use a flawless disc. For MP3/WMA, refe\
r 
to the description about MP3/WMA.
Playing VBR (Variable Bit Rate) files may cause sound skipping.
  Play Non-VBR files.
CD
MP3/WMA
Troubleshooting 
						

							
CQ-C300U27
English

Troubleshooting, Error Display Messages
Troubleshooting
ProblemPossible cause  Possible solution
No response to 
pressing buttons
The battery is inserted in the wrong direction. A wrong battery is inserted.
  Insert a correct battery in the correct direction.
The battery is weak.
  Replace the battery with new one.
The aiming direction of the remote control unit is wrong.
  Aim the remote control unit at the sensor of the unit and press buttons.\
The sensor is exposed to direct sunlight. (The remote control unit may \
not be 
operable when the sensor is exposed to direct sunlight. In such a case, \
the 
system is not faulty.)
  Block off sunlight to the sensor.Remote control unit
DisplayPossible cause  Possible solution
The disc is dirty or upside down.
  Check the disc.
The disc has scratches.
  Check the disc.
(After 5 seconds)
No operation by some cause.
  Unplug the power cord and plug it again. In case the unit is still out of 
order, consult your dealer. (  Installation Instructions)
(After 5 seconds)
To next file automatically
The player for some reason cannot read the file you are trying to play. (File 
recorded in an unsupported file system, compression scheme, data forma\
t, file 
name extension, damaged data, etc.)
  Select a file that the player can read. Check the type of data recorde\
d on the 
disc. Create a new disc if necessary.
(After 5 seconds)
To next file automatically
A WMA file can be copyrighted.
  The file protected by copyright is not playable.
Note: Refer to the System Upgrade Guidebook for error messages regarding optional products.
CD/MP3/WMA
Error Display Messages 
						

							
CQ-C300U28

Notes on Discs
If	you	use	commercial	CDs,	they	must	have	
either	of	these	labels	shown	at	right. 	
Some	copy-protected	music	CDs	are	not	
playable.
How to hold the disc
•  Do not touch the underside of the disc.
•  Do not scratch on the disc.
•  Do not bend the disc.
•  When not in use, keep disc in the case.
Do not leave discs in the following places:
• In direct sunlight
•  Near car heaters
•  Dirty, dusty and damp areas
•  On seats and dashboards
Disc cleaning
Use a dry, soft cloth to wipe from the center outward.
TEXT
Notes on CD/CD Media (CD-ROM, CD-R, CD-RW)
• You may have trouble playing back some CD-R/RW discs recorded on CD recor\
ders (CD-R/RW drives), either due 
to their recording characteristics or dirt, fingerprints, scratches, e\
tc. on the disc surface.
•  CD-R/RW discs are less resistant to high temperatures and high humidity \
than ordinary music CDs. Leaving them 
inside a car for extended periods may damage and make playback impossibl\
e.
•  Some CD-R/RWs can not be played back successfully thanks to incompatibil\
ity among writing software, a CD 
recorder (CD-R/RW drive) and the discs.
•  This player cannot play the CD-R/RW discs if the session is not closed.
•  This player cannot play the CD-R/RW discs which contains other than CD-D\
A or MP3/WMA data.
•  Be sure to observe the instructions of CD-R/RW disc for handling it.
Notes on CD-Rs/RWs
Maintenance/Fuse
Your product is designed and manufactured to ensure the minimum of mainte\
nance. Use a dry, soft cloth for routine 
exterior cleaning. Never use benzine, thinner, or other solvents.
Cleaning the 
Unit
If the fuse blows out, consult your dealer, or your nearest authorized Panasonic Servicenter.
Fuse
	Warning
• Use fuses of the same specified rating ( 15	A). Using substitutes or fuses with higher ratings, or connecting 
the unit directly without a fuse could cause fire or damage to the uni\
t.  If	the	replaced	fuse	fails,	contact	
your	nearest	authorized	Panasonic	Servicenter.

Printed side
Labels created by a printer, 
Protective films or sheets
Irregularly shaped discs
Disc with adhered 
stickers or tape
Discs with cracks, scratches 
or parts missingDo not write on the disc label with a ballpoint 
pen or other hard-point pens. 
						

							
CQ-C300U29
English

Specifications
Power	SupplyDC 12 V (11 V – 16 V), Test Voltage 14.4 V, Negative Ground
Current	Consumption
Less than 2.1 A (CD mode, 0.5 W 4-Speaker)
Maximum	Power	Output
50 W x 4 (at 1 kHz), volume control maximum
Tone	Adjustable	Range	
Bass: ±12 dB (at 100 Hz), Treble: ±12 dB (at 10 kHz) 
Speaker	Impedance
4 – 8 
Pre-amp	Output	 Voltage
2.5 V (CD mode: 1 kHz, 0 dB)
Subwoofer-output	 Voltage
2.5 V (CD mode: 1 kHz, 0 dB)
Pre-amp	Output	Impedance
200  
Subwoofer-output	Impedance
200  
Front	AUX	input	 Input	Impedance
Allowable	External	Input	
Connector
10 k 
2.0 V 
3.5 mm  Stereo mini-pin
Dimensions	(Main	Unit)
178 (W) x 50 (H) x 160 (D) mm {7˝ x 1 15/16˝ x 6 5/16˝ }
Weight	(Main	Unit)
1.3 kg {2 lbs. 14 oz}
Sampling	Frequency8 times oversampling
DA	Converter
1 bit DAC System
Pick-Up	 Type
Astigma 3-beam
Light	Source
Semiconductor laser
Wave	Length
790 nm
Frequency	Response
20 Hz – 20 kHz (±1 dB)
Signal	to	Noise	Ratio
96 dB
Total	Harmonic	Distortion
0.01 % (1 kHz)
Wow	and	Flutter
Below measurable limits
Channel	Separation
85 dB
General
CD Player
FM
Frequency	Range87.9 MHz – 107.9 MHz
Usable	Sensitivity
10.2 dBf (0.9 µV, 75 )
50	dB	Quieting	Sensitivity
15.2 dBf (1.6 µV, 75 )
Frequency	Response
30 Hz – 15 kHz (±3 dB)
Alternate	Channel	Selectivity
75 dB
Stereo	Separation
35 dB (at 1 kHz)
Image	Response	Ratio
55 dB
IF	Response	Ratio
100 dB
Signal	to	Noise	Ratio
62 dB
AM
Frequency	Range530 kHz – 1 710 kHz
Usable	Sensitivity
27 dB/µV (22 µV, S/N 20 dB)
Stereo Radio
Above Specifications comply with EIA standards. 
Notes:
•  Specifications and design are subject to modification without 
notice due to improvements.
•  Some figures and illustrations in this manual may be 
different from your product.
Notes on Discs, Maintenance/Fuse, Specifications
Power Output:
18 W RMS x 4 Channels at 4  and  1%
THD+N
Signal to Noise Ratio:
85 dBA (reference: 1 W into 4 )  
						

							
CQ-C300U30

Informations de sécurité
	Veuillez	lire	attentivement	le	guide	d’utilisation	de	l’appareil	et	de	tous	les	autres	composants	avant	d’utiliser	le	système	
audio	du	véhicule.	Il	contient	des	instructions	sur	l’utilisation	
du	système	d’une	manière	sûre	et	efficace.	Panasonic	
n’assume	aucune	responsabilité	pour	tout	problème	résultant	
du	non-respect	des	instructions	fournies	dans	ce	manuel.	Des	pictogrammes	sont	utilisés	dans	ce	guide	pour	indiquer	comment	utiliser	l’appareil	en	toute	sécurité	et	vous	alerter	
de	dangers	potentiels	résultant	de	connexions	et	d’opérations	
incorrectes.	La	signification	de	ces	pictogrammes	est	
expliquée	ci-dessous.	Il	est	important	de	bien	comprendre	
ces	pictogrammes	pour	utiliser	correctement	ce	manuel	et	le	
système.
Avertissement
Ce pictogramme indique la présence 
d’instructions de fonctionnement et d’installation 
importantes. Le non-respect de ces instructions 
peut causer des blessures graves ou mortelles.Attention
Ce	pictogramme	indique	la	présence	d’instructions	
de	fonctionnement	et	d’installation	importantes.	Le	
non-respect	de	ces	instructions	peut	causer	des	
blessures	ou	des	dommages	matériels.
 Avertissement
Observez les avertissements suivants lors de 
l’utilisation de cet appareil.
  Le conducteur ne devrait jamais regarder l’afficheur 
ni régler le système tout en conduisant.Regarder	l’afficheur	ou	régler	les	fonctions	de	l’appareil	
peut	distraire	le	conducteur	et	causer	un	accident.	
Stationnez	le	véhicule	dans	un	lieu	sûr	et	utilisez	le	frein	à	
main	avant	de	regarder	l’afficheur	ou	régler	le	système.
  Utiliser la source d’alimentation correcte.Cet	appareil	est	conçu	pour	fonctionner	avec	un	système	
de	batterie	12	V	CC	négative	à	la	masse.	N’utilisez	
jamais	cet	appareil	avec	d’autres	systèmes	de	batterie,	
particulièrement	des	batteries	de	24	V	CC.
  Garder les piles et leur film de pellicule isolante 
hors de la portée des enfants.Les	piles	et	la	pellicule	isolante	sont	susceptibles	d’être	
avalées,	et	doivent	être	gardées	hors	de	la	portée	des	
enfants.	Consultez	immédiatement	un	médecin	si	un	enfant	
avale	une	pile	ou	la	pellicule	isolante.	
  Protéger le mécanisme de la platine. 
N’insérez	aucun	objet	étranger	dans	la	fente	de	l’appareil.	
  Ne pas désassembler ou modifier l’appareil.Ne	désassemblez	ou	ne	modifiez	pas	l’appareil,	et	n’essayez	
pas	de	le	réparer	vous-même.	Si	l’appareil	doit	être	
réparé,	consultez	votre	revendeur	ou	un	centre	de	service	
Panasonic	autorisé.
  Ne pas utiliser l’appareil quand il est en panne.Si	l’appareil	ne	fonctionne	pas	correctement	(pas	
d’alimentation,	pas	de	son)	ou	dans	un	état	anormal	(un	
objet	étranger	est	inséré	dans	l’appareil,	il	a	été	exposé	
à	l’eau,	il	émet	de	la	fumée	ou	des	odeurs),	éteignez-le	
immédiatement	et	consultez	votre	revendeur.
  Garder la télécommande dans un endroit sûr dans 
le véhicule.La	télécommande	peut	tomber	sur	le	plancher	du	véhicule,	
se	coincer	sous	la	pédale	de	frein	et	provoquer	un	accident.
  Confier le remplacement du fusible à un personnel 
de service qualifié.Si	le	fusible	a	sauté,	éliminez	la	cause	du	problème	et	
consultez	un	technicien	qualifié	pour	remplacer	le	fusible	
prescrit	pour	cet	appareil.	Un	remplacement	incorrect	du	
fusible	 peut	causer	 de	la	fumée,	 un	incendie	 et	endommager	
l’appareil.
Observez les avertissements suivants lors de 
l’installation.
 Débrancher le câble de la borne négative (–) de la 
batterie avant l’installation.Le	câblage	et	l’installation	avec	la	borne	négative	(–)	de	la	batterie	
connectée	peuvent	provoquer	des	chocs	électriques	et	des	
blessures	dus	à	un	court	circuit.
Certains 	véhicules 	équipés 	d’un 	système 	de 	sécurité 	électrique 	ont 	des	
procédures 	spécifiques 	de 	débranchement 	des 	bornes 	de 	la 	batterie.
LE NON-RESPECT DE CES PROCÉDURES PEUT CAUSER L’ACTIVATION INVOLONTAIRE DU SYSTÈME DE SÉCURITÉ ÉLECTRIQUE. CECI PEUT ENDOMMAGER LE VÉHICULE ET CAUSER DES BLESSURES CORPORELLES OU MORTELLES.
  Ne jamais utiliser des composants de sécurité pour effectuer 
l’installation, la mise à terre et d’autres fonctions similaires.N’utilisez	jamais	des	composants	relatifs	à	la	sécurité	du	
véhicule	(réservoir	d’essence,	frein,	suspension,	volant	de	
direction,	pédales,	coussin	de	sécurité	gonflable,	etc.)	pour	
effectuer	le	câblage	ou	fixer	l’appareil	ou	ses	accessoires.
 Il est interdit d’installer l’appareil sur le couvercle du coussin 
de sécurité gonflable ou dans un emplacement interférant 
avec l’opération du coussin de sécurité gonflable.
  Vérifier la tuyauterie, le réservoir d’essence, le 
câblage électrique et d’autres éléments avant 
d’installer l’appareil.S’il	est	nécessaire	de	percer	un	trou	dans	le	châssis	du	
véhicule	pour	attacher	ou	câbler	l’appareil,	vérifiez	tout	
d’abord	la	position	du	faisceau	de	fils	électriques,	du	
réservoir	d’essence	et	du	câblage	électrique.	Percez	alors	
un	trou	depuis	l’extérieur	si	possible.
  Ne jamais installer l’appareil dans un emplacement 
où il peut interférer avec votre champ de vision.
  Ne jamais brancher le cordon d’alimentation pour 
alimenter un autre appareil.
  Après l’installation et le câblage, contrôler le 
fonctionnement normal d’autres appareils électriques.L’utilisation	de	ces	appareils	dans	des	conditions	anormales	
peut	causer	des	incendies,	des	chocs	électriques	ou	un	
accident	de	circulation.
  Dans le cas d’une installation dans un véhicule 
équipé de coussins de sécurité gonflables, 
observer les avertissements et les mises en garde 
du fabricant du véhicule avant l’installation.
  S’assurer que les fils de sortie ne gênent pas la 
conduite ou l’accès au véhicule.
  Isoler tous les fils exposés pour empêcher un court-
circuit.