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I haven't seen that, but have had other issues with the gmx-320. It worked for a week or two, but now the nav unlock causes the gps to get "lost" once a destination has been entered. Also, the mute button doesn't seem to have any effect anymore making every other function unavailable. I have...

Thanks for the response. It happened this morning as my wife was leaving for work, so I didn't get a chance to troubleshoot. That'll be the first thing I check tonight. I just wanted to make sure this wasn't a known issue with the truck or Lockpick.

Hi all, this is my first post here. This forum has wonderful people and info and even saved me $100 on the Lockpick :D So, the reason for my post. My wife started our 07 Tahoe this morning and none of the gauges were registering. No speedo, gas, nothing and the lcd readout said...