My camera is an ebay wireless unit ands its 12v+ is connected to the reverse light, so it powers up and sends a signal when in reverse. The receiver unit is connected to a dvd touch screen player i got off ebay by the AUX video in and the reverse camera video in, i can selct the aux video on the dvd and when i select reverse, it works just fine. However, its powerd up all the time due to the way i connected it. Yes, the headunit has an orange trigger and I know that it needs to connected to the sender unit to be correct, but some people fail to realise, that there is another way to connect everything from the front. there is a natural trigger located somewhere in the front where the original reverse comes from the gearshift to the instrument cluster then to the rear of the car. Find that trigger and simply tap in using the 12v+ on the reciever and the trigger from the headunit. Simple. Cars can have wireless to save you running wires throught the length of the car, you just need to find the trigger. both ways are easy, if you know what you are doing. Its normall located behing the passengers kick panel. I could serch for it with a 12v tester, but i run the dangerous risk of setting off an airbag. Not prepared to do that just yet, so i needed a wiring diagram that could show me where its located in the cabin.... i hope this makes more sense, cheers tim...
