Quote:
Originally Posted by ncx
Correct. Powers1 is giving you good info. Pins 85+87 connect to reverse-light-ground (brown) and cam ground. I just crimped two wires together for this and connected them to the 2 grounds. Pin 86 connects to reverse-light positive (yellow/white) and cam positive.
Here's more that may help cam install 1 cam install 2
You can do it 
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2004 X5 4.8is
Don't know how anyone got it to work this way. When I hooked it up (OEM TV module) the screen flickered between 1 and 2 seconds when in reverse. The image was there and you could see it, but it was very very annoying. The problem was the PWM coming from the reverse lights. I figured out a way to hook it up using 2 relays as follows:
Relay 1:
86: Tail light +
Relay 2
85: Join to pos. 87 and Tail light ground
30: Pin 17 at the TV module blue connector
Relay 2:
86: Cam ground
ground (used radio conenctor brown wire pin 12)
87: 12v acc. (used radio connector violet/white pin 16)
85: -> to relay 1 86
30: Cam +
That seems to have eliminated the flicker. Hope this helps others in the same predicament.
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