I need to wire a radio to a 2010 freightliner cascadia plz help

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{"text":"I need to wire a radio to a 2010 freightliner cascadia but when I was done wiring up the radio and turned the key to the on position the dash light , all of the lights were flashing and all I did was cut the factory wiring harness and hard wired to the back of the radio nothing more.... When I was feeding the amp kit wires through the dash could I have knocked something loose or am I missing a ground I'm lost on this one","pics":"[]","canComment":true}