I got the orbital double din, installed everything and have put the harness into the Avic Z2 and I get no sound out of my speakers... There are two things that were plugged into the back of the original infinity system... One of which is a single black audio cable that I've plugged into the the back of the Avic, the other one there isn't a spot for, but I was told it wasn't necessary. What am I doing wrong or how can I fix this??? Thanks Matt

PS (I tried my stock headunit and when (harness, single black cable and other plug) are in it works)

bump

Do you have the SSL option package? I.e. the subwoofer and amplified speaker system.

You will rpobrably have to do a little searching because one of those wires is to turn on your factory amp. It's more than likely going to need a switched 12v source and then you will have sound.

If you are giving your amp speaker level inputs it may sound like sh*t and the volume may be very sensitive. If this is the case wire in the front and rear outs instead.