I posted the XM question a while back (on the old board) and I am still unsure about a few things. Basically, I drove a new 2003 Tahoe with an XM integrated into the head unit. The dimensions for the Tahoe head unit looked identical, as well as all of the controls to the H2 radio. Has anyone gotten a part number for the Tahoe and Hummer head units to see if they are the same? If not, could I order a replacement Tahoe head and use it in the Hummer? More to the point, does anyone have a photo of the back of the stock Hummer head unit?
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