alrite, i've put off the install long enough but tomorow im gona do it.
I just have one or two questions left (sorry about all the questions so far):
1) I have the monsoon system so, to connect the speakers am i supposed to connect the speaker wires from the peripheral adapter to the "power cord conector" wires, or the speaker wires on the "RCA connector 1". In either case do i still connect the subwofer wires to the subwoofer wires on the rca connector 1 or where? and i do connect the system remote control rite?
Do all of the speakers go through the amp or just the subwoofer?
I connected to the speaker wires, not the amp wires coming from the pioneer. All speakers go through the amp. Do not connect the subwoofer wires, and amp does the splitting to the sub. Just connect the eight speaker wires.
2) is it ok to connect all of the acc wires coming from nav unit, ipod adapter, and xm tuner all onto the same wire that comes to the wiring harness or should i run a larger gauge wire to some other place? Also the same question goes for the constant, and also the ground?
I connected all the IGN hot wires to the red wire from the Peripheral relay that is designed to provide IGN power to the radio. I also connected the one yellow (B+) wire from the XM to the yellow wire from the Peripheral adapter and the radio.
For ground, I made one basic ground circuit, grounding all the wires behind the radio. DO NOT, connect to the ground wire coming off the GM connector. If you look behind the radio opening, you will see two 10mm bolts, on each side of the opening, attaching a brace (or braces) to the round cross car beam. That is what I used for the main ground. Last week I also ran a very heavy gauge wiire from this location directly to the negative battery cable for a redundant ground point. (Trying to remove the alternator whine that is only on the Onstar Phone Circuit.)
I think that all i need to know to do the install tomorow (well at least i hope so)

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Thanks for all the help peope, i really appreciate it, Thanks!
P.S. Can someone post instructions on how to remove rear panel, whre subwoofer is thanks.