Quote Originally Posted by des19 View Post
I did read this. I cant do this suggestion because my RCAs come off of a harness from the head unit (in other words there is a little harness plugged into the deck and then all the RCAs after hence cannot ground them like that)

will trouble shoot saturday
My pioneer head unit is wired just as yours is, and you can still do the grounding with your RCS's. Inside of your head unit, all of the grounds are wiring together, so if you have ground one, you have grounded them all. So, this still leaves you with the issue of running a wire to the dongle with all of your RCA outs. Just ground your RCA's on the other end of the wire, against your amplifier. Smoosh a small gauge wire in-between the ground on the RCA and receptacle for your amplifier. Like I said before, just ground one of them and your entire system is grounded. Hope this helps.