Forgot to mention that I have picked up the full set of service and repair manuals along with CD for the Hummer H2 2003-2005, I'm sure it will cover 2006 also...so if you need some help just post it here and I'll do what I can to provide you with some answers and schematics.
Cheers!

<edited><editID>MDimitri</editID><editDate>2007-01-30 14:41:42</editDate></edited>