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THREE1234 -> RE: NAV/DVD question (2/2/2008 12:59:08 PM)
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[:)][8|] Hello, I purchased a Tnr800 navigation radio am/fm/xm ready thru ebay , I have a problem , the am/fm/xm radio works fine ,but every time I insert my dvd map in the unit and press NAV bottom I get the "CD ERROR" signal and dvd map is ejected,before I had 6-CD CHANGER W/AM/FM XM READY RADIO from the factory in my hummer h3 2006, Do i need to take a trip to dealer to have my navigation unit code to my car's computer, since is aftermarket? may be the computer of my car is code for the radio only ...please need help!
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