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Discussion Starter #1
I recently replaced the nav unit in my 2004 escalade esv. Everything works great (radio, xm, cd changer, steering wheel controls) EXCEPT - the side buttons do not illuminate when the headlights come on and I can't dim the screen at night with the scroll wheel on the dash like I used to witht the previous unit. Any ideas/suggestions?
 

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Discussion Starter #3
Just swapped out the unit with a new one. Unplugged two wiring harnesses, a green cable and a black cable then plugged them all back into the new unit. I'll take a look to make sure a wire didn't get loose, but I was pretty careful...
 

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I swapped out the new unit and put the old one back in. All of the buttons illuminate and I'm able to dim the buttons and the screen when the headlights are on. Must be the new unit...time to ship it back. Thanks for your help!
 
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