I was installing a new radio to my Chrysler 300 2007 and know the car won't start
Your original car radio has anti theft device in it,you must replace original radio and reset the ecm/brain by disconnecting your positive cable from battery after replacing original radio.Then you must get a ether a control box compatible with the radio you are programming,if it is and after market stereo.If it is a factory radio it must be programmed to the car by a chrysler dealer.
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