I have checked on both H2 and H3's (as well as many other GM's) and even if they had onstar, there was no lead from the main antenna for xm (only 2 black coax leads that went to the onstar box) and definitely no harness for the xm module. I have been trying to get that harness from my Delphi distributor as we have some extra oem xm tuners, but am told it is not available without buying the entire xm kit.
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\'05 Slate Blue Sut w/ Magnusun, JBA headers, custom exhaust, 22\" MC2 RT5 wheels, Pioneer AVIC Z1 nav, Passport SRX, Vizualogic A1000 dual, bi xenons, fog xenons, dual optimas, and just gettin\' started!
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