Rydis

I have a Avic d-3 and have it installed into a chevy silverado 1500. I am using the Gmos 04 harness. The gmos 04 harness has 4 rca jacks . The avic d3..only has 2 rca inputs. When installed this way..I only get sound from the front speakers. How am I suppose to get sound from the rear speakers? The rca inputs on the d-3 only contain 2 inputs and 1 video. Also, I bought the gmos used..and someone had cut the RCA jacks. So I had to cut the RCA jacks on the d3. I wried the wires together in the same manner (the inner ground wire to the inner wire of the input and the outs to the outs). So tha

Any reason why I can't get my settings to save? Everytime I turn on my car (with the exception of a few times) I lose all my settings I had previously. I lose all presets, sound settings, clock setting, the beep tone from screen touch..everything is reset to factory default? How do we save settings on the d3??