No Problem.

I strongly suggest double checking with PIE as I don't know exactly what your radio looks like especially with all the different options.

Here's this one. (Captions Credit P.I.E.)
PIE GM12-AUXv2:

http://www.amazon.com/GM12-AUXV2-Adj...1685168&sr=1-1

Auxiliary Audio Input for General Motors vehicles, installs to 12-pin connector at headunit

Compatible with factory external CD changer installed.
Compatible with factory XM installed.
For vehicles with Class II satellite-ready or CD Changer capable radios.
Connects to factory 12-PIN connector at headunit.
Compatible with factory navigation radios.

FOR LAN BUS RADIOS 2007-2010 (And possible earlier if they have Lan BUS) Satellite and enhanced radios
PIE GM12LAN-AUX/S
http://www.amazon.com/Auxiliary-Inpu...1685290&sr=1-1

The GM12LAN-AUX/S is the first auxiliary input interface available for the GM LAN Bus radios (2007-2010). This interface will also work with Class II radios found in many 2003-2009 GM vehicles.

Compatible with factory satellite installed.
Compatible with factory navigation radios.
Must be used with an additional harness.
For GM vehicles with Class II and LAN-BUS radios.

Also Check places like Ebay:

http://shop.ebay.com/?_from=R40&_trk...All-Categories

http://shop.ebay.com/i.html?_nkw=GM1....c0.m270.l1313

Hope this helps.
C

Installation Image Credit P.I.E