Electronic issues on F150
I just got an electronic air horn/PA installed on my
2006 F150 by a professional EVT service, and a
couple days later started noticing some electronic
issues. Sometimes when I turn my truck on, the
radio is set to AM 590, which it does after I’ve jump
started it. Today it also began making an electronic
sounding popping noise from what sounded to be
coming from under the drivers seat or under the
rear seats. The popping happened about every 15
seconds and the ABS and BRAKE warning lights
turned on at the same time as the popping. My
question is; what exactly is causing this to happen
and how do I get it to stop?