I thought I'd have a go at fitting a reversing camera to my A3 since I've got a new driveway and seeing down it to reverse is a bit difficult because of the angle.
I've got RNS-E and an aftermarket AV input unit, (not the Kufatec one, it's from Poland), that works great with my iPhone 4 on video & audio. (I've run an Apple AV iPhone lead to the armrest and the iPhone sits in there. It charges with the help of a USB power port in the glove box next to the multimedia interface).
I've fitted a number plate camera, (eventually - that was a SOB I can tell you), and have run the ground to a ground point in the boot lid and the +12 line to the reversing positive of the rear light cluster. I've fed the video lead to the glove box for the AV input prior to full install. I'm currently in the testing phase.
As I suspected would happen, the car is throwing a fault code for reversing light failure, probably due to the CAN and diagnostics nature of the car. Also, the picture will flick on and off a few times when engaging reverse and then disappear. Not sure if this is also related to diagnostics but the long and the short is, no camera or reverse light.
I'd love an answer to a few questions if anyone can help.
1) Is the supposition about the CAN diagnostics correct?
2) Is there a permanent 12V in the boot lid that won't throw a fault.
3) Can I pick up the reverse signal to feed the RNS-E from the current line or do I need to find an alternative.
I've searched the forums for help but am stuck. I got the inspiration from this thread originally, a brilliant thread BTW.
I'll PM Woorlord, the OP on the thread above and any help from anyone would be gratefully received.
Car is 2004 A3 8P 3.2 Quattro S-Line
and 1/2 camera