
I was trying to upgrade the audio system on a 2011 Yukon Denali. , even better than google maps for me. I don't like that it says it works for this car but not completely. The rear camera never works, there is an OE camera. The rear speakers never work. And the worst is the technical support. I sent an email asking about problems and got a reply to follow the wiring diagram to connect the camera. Which I did, but it still didn't work. More detailed information on the product installation instructions is required.

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