Bling; maybe I know what you were talking about now. This last time in the Hummer shop they decided to have me have the Nav unit removed and the original radio re-installed to see if the issue happens with the original setup since they can't find anything else. Apparently, even if the unit is switched to the ignition, the harness interface connects in such a way that there is a tiny amount of power to keep the clock and memory stuff current. So the next couple weeks will tell I guess. If it is the Navigation system, does anyone know if the factory unit can be added to our vehicles that did not come with them? My dealer said they are available now but was unsure if they could be installed in a non-navi unit. I also see the factory Navi has been added to the Hummer H3 website options list. Also the Roof marker lights, the off-road lights and the off-road lights that set in the bumper have all been added back to the site recently.
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