Land Rover Discovery 3 Inexpensive Av Modification Manual
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A www.disco3.co.uk resource Page 10 console, which is there to safeguard the system from unwanted hissing if the AUX input is selected on the head unit with no input plugged in. To overcome this, find the 3.5mm minijack we chopped off the cable earlier, cut the plastic stalk about half way through with a hacksaw and then file/grind the rest until you have about 4mm of the stalk left – this will allow the flip cover to close properly. Mine was white so I painted it black with a permanent marker: You now need to plug this in the auxiliary input and this will enable the sound from the connector we just tapped to: That’s about it, you can refit the kickpanel, screw in the bonnet release handle and tidy up the cables wherever you have chosen to keep them.
A www.disco3.co.uk resource Page 11 Further refinements: I was pretty happy with the end result, bar the fact I didn’t like having the cables loose in the glovebox. Inspired by how the Land Rover Audio Connectivity Module looks, I set about to try to replicate the looks. Initially, I thought of gluing the existing input connectors I had into a box and leave it at that. I occurred to me however it may be simpler to use an old Scart‐composite adaptor I had, which it was!!! I used one of my SMB‐RCA cables, removed the RCA end and bought some new twin channel audio cable. Got a general construction box 8x5x3cm and cut it to size of the Scart connector: I then ground down the lip on the lid, the input/output selector on the scart adaptor (so that it fits flush in the box) and drilled a hole for the cables in the back of the box (and put a grommet to protect them from rubbing): Having found the pinout of the scart connector protocol, I simply had to choose whether to use the input or output pins: I opted for input, which are pins 2, 4, 6, 17 and 20 (though some, like my first test connector have composite video ground on pin 18). As the picture above shows, the connection was made with Lucar type female crimp connectors, in which I crimped the corresponding wires from both the twin channel audio and RG174 cable:
A www.disco3.co.uk resource Page 12 When I fitted them to the scart pins, I heatshrunk around the metal connector part to avoid contact from vibrations as they are spaced quite tightly: The last bit is to hot‐glue or epoxy‐glue the connector in the aperture of the box we cut earlier and the “loom” is now finished: Connections are as described above and I think the overall result looks quite good: I used industrial Velcro to stick it to the glovebox, male stuck on the connector, female stuck on the glovebox, as the felt lining of the glovebox won’t hold the male Velcro directly. The end result is I can now attach any AV source easily and all tucked away neatly. And I can always remove the whole modification without any signs it was ever there. The cable in the secong picture above is from an old Nokia N95 (part of the boxed contents), which has an AV output built in but I discovered it can also be used on the AV output from a Creative Vision:M! (some manufacturers swap the poles of left audio, right audio and video on the 3.5mm jack to force you buying their own cables). Of course, any composite source will play equally well, including iPod/iPhone etc. (pics a little fuzzy!)
A www.disco3.co.uk resource Page 13 I was really pleased in the end, more so because I made most of the components myself and the outcome looks neat. Keying in the code every time to watch takes only a few seconds and the audio works really well. I hope you enjoyed reading!