Can you please check and make sure that the antenna is plugged in. A lot of times the antennae is used as a secondary ground for the head unit. Also could you check for an open in the black/white wire that is highlighted in the wiring diagram that I have included in the diagrams down below. I have also included a guide for how to find opens in an automotive electric circuit as well as how to find unwanted resistance with a method called the Voltage Drop method. Please go through these guides and get back to us with what you are able to find out.
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Saturday, August 10th, 2019 AT 12:46 AM