The Metra 71-2104 will hook up the factory wiring to the pioneer harness without tapping into anything (not 100% needed, but allows for a much easier installation or change if required)

GMOS-Lan-03 (Harness to keep chimes and warning bells and onstar for NON Monsoon systems)

GMOS-Lan-04 (Harness to keep chimes and warning bells and onstar for Monsoon systems that will use the Monsoon amps.)

EDIT: After installing the unit the GMOS-lan-03 will take the place of the Metra wiring harness so both are not needed. You may use only the gmos harness.

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Mean GXP Delivered 1/30/2007 $MSRP +$2K

My Stereo Install--> Ultimate AVIC D3 Install thread

Team Solo Performance

Team Solstice 2008

Pioneer Avic D3 - Nav System
JL Audio ZR speakers, Alpine PDX 4.150 amplifier
Solo Performance Street Race exhaust
JPM custom center console, handles and shifter
Painted dash and windshield surround
Custom Valentine1 flush radar display
Debadged rear lettering
K&N Air Filter
OZ Ultraleggera Wheels
DDM Works Big Brake Kit