Looking for the Telematics/OnStar install location

CHEVROLET TAHOE
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GAOJEN
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I recently purchased a 2002 Tahoe Z71 with OnStar, as the unit is now out of date, I would like to use the antenna, control module and other items in other ways. I just want to know where the module is located so that I can find it and modify what I need.
I used to work on the design team that produced those Telematics Modules, and would rather play/hack it then upgrade it to digital. But I would like to know where the module is located before I tear apart the interior of my new, to me, vehicle.
All HELP is very much appreciated. Thanx!
May 17, 2007 at 9:09 PM
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2CARPRO JACK
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Closest I can find in my software is the Radio Antenna Module- located above right rear quarter glass in headliner. Hope that helps
May 18, 2007 at 9:32 AM