Hello there, I got a new radio with Android Auto and backup camera that I'm installing on my 2012 RAV4
As I am connecting all the wires of the harness of the unit to the metra harness I noticed that they each have a Black Wire marked as Ground, do I connect these together like with the rest of the wires or on the chassis of the car ?
I'm new to all that, so I don't want to blow up anything
*pictures are references of the 2 harnesses
https://postimg.cc/gallery/1D01Grr
The black ground wires can be twisted together AND attached to a chassis grounding point. Both. The instructions that came with the unit should have been able to answer this question.
Yeah actually the instructions only have a diagram but nothing specific, I emailed customer service and this is what I got:
Generally, the black "Chassis Ground (-)"wire from the ATOTO wire harness is needed to connect to the ground wire of your car or third-party harness.
Thus I think it's supposed to be connected to metra black wire marked as "Black Chassis Ground".
Correct. Any chassis grounding point will complete the circuit.
I don't see any harnesses in your photos, but I would just get the proper plug & play harness adapter from Scosche. No twisting wires together.
