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1999 Cadillac Deville.

Cadillac Tom

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Everything worked as it should. I thought I would install a aftermarket Bluetooth stereo. I ordered the complete dask kit including harness I cut nothing. I removed the stock Head unit and installed the aftermarket Pushed the power up button and nothing. I was puzzled so I checked all fuse nothing was popped. I put the stock Head unit back in and no power. I went to pop the trunk by the key fob and nothing same with the gas door windows will not roll down but they light up at night I was driving and no high beam's. I feel I triggered the Theft system by removing the stock unit. A handful of U codes came up  Any help will be gratefully appreciated. Thank you Tommy.

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Welcome to the forum.

I am leaning toward something not being wired right with the aftermarket setup.

Check the underhood fuses located at the driver side strut tower

I assume you had to splice the wires together from the retro pigtail to the radio pigtail.

You plugged it in at the dash? I ask this because what would you use for the turn on feed? The original is turned on via datalink. 

What oem setup did you have? Bose, Non Bose, Or DSP Active audio?



Nice, clean, luxury= fine automobile

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