mikew01-pe

Hey everyone, new member to the forum and new member to the AVIC product line. I just ordered a Z-3 and am going to have it installed tomorrow. I was looking around a few threads and did a search about grounding the wire so you can view it in motion. Can someone please help me be 100% sure about what I need to tell the shop that is installing it? I am sure they already know what they are doing but I don't want to have to take it back later and show them what to do. Thanks guys!