Hello,

For Christmas I bought my girlfriend the following items for her 2013 Nissan Rogue SV (standard 6 speaker system).

1. Pioneer AVH-X5600BHS
2. ASWC-1 & Axxess AX-NIS32SWC (to retain factory backup camera).
3. Metra 70-7552

My question is regarding the ground wire. Per the Wiring Harness the black wire says "For Subaru Only". However, the pin does connect to a black wire on the original harness. I've connected it up and everything works (minus the ASWC-1 or the AX-NIS32SWC), mainly because I'm still trying to figure out which harness is used as the ASWC came with one as well as the NIS32SWC, and the ASWC-1 only has one port.

My question for you guys is this, can you use the ground wire from the Metra 70-7552 to ground, or must you go to the chassis? Upon looking it appears there are no bare metal locations reachable behind the dash (all looks plastic).

Thanks in advance (I've tried searching but came up empty about grounding).

Ground is ground lol. You don't HAVE to connect it to the vehicle chassis, using the one in the harness is fine.