BruHarNV Posted January 10, 2018 Share Posted January 10, 2018 Does anybody know how to by-pass the navigation unit and jumper the plugs so the maintenance button and phone sytem works? I can install a Tom Tom or Garmin a lot cheaper than fixing the nav unit. I have tried all of the tricks including removing the battery and soldering it back in. Same results; Please insert the correct map disk? Cannot use my maintenance button as it defaults right to the Nav message on screen. The phone will work but cannot get it off "Mute" Quote Link to comment Share on other sites More sharing options...
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