Installed a new head unit now nothing works proper

[Night_train21]

I installed a new head unit now none of my Gauges dont work and all the service lights are on ( check engine, service 4x4, brak, check gauges etc...) all those lights someone please help.

THANK YOU!!

If it matters its a 02 durango

a Kenwood KDC-352U

I used a Scosche CR02B/ CR02 wire harness

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[MutantDreams 10+ year member]

Did you hook up illumination/dimmer wire? And did you cut the radio on with any plugs disconnected? That can throw cel's sometimes.