Hey, I’m wondering if I can splice the camera harness and splice my aftermarket reverse camera and tap those two wires together and have it displayed on the aftermarket mirror. The oem camera harness has four colored wires. I need help to find out what each four wires are? Basically what I need for power, ground and reverse? It’s gray, white, black and red wire.

 

If I'm being honest, your post is terribly worded to the point where it's incredibly hard to understand.

If you have an aftermarket camera.... hook it up to the big screen in your dashboard.
If you have an aftermarket mirror .... hook it up to your aftermarket camera.

If you need instructions on how to do this click here :
https://g35driver.com/forums/v36-aud...ml#post7167886

 

ahh yeah my bad. Just realized it worded really badly. I have a aftermarket mirror. Car didn’t come with the Navi/backup unit. Was just wondering if I can use the oem camera with the aftermarket mirror.

 

Yes. You'll need the splice the OEM camera (shielded) wires, into an RCA.

You can run that RCA into your armrest, and use the 7 inch factory LCD instead of a 3 inch aftermarket mirror.