I replaced the factory Unleashed amps with JL Audiio equipment.
My car amp installer used a 12v trigger from the sync4 back to the pac audio, 8 channel Amp and mono sub Amp.
Today when I picked up my truck from dealer I have no audio.
Have 12v to amps
But I don't have 12v trigger voltage. If I jump the trigger amps work.
Something got changed from the sync4 back to the amps behind rear seat.
If the technician pulled codes he would have seen error for front speakers. I...
12v trigger for aftermarket amps.
My car amp installer used a 12v trigger from the sync4 back to the pac audio, 8 channel Amp and mono sub Amp.
Today when I picked up my truck from dealer I have no audio.
Have 12v to amps
But I don't have 12v trigger voltage. If I jump the trigger amps work.
Something got changed from the sync4 back to the amps behind rear seat.
If the technician pulled codes he would have seen error for front speakers. I...
12v trigger for aftermarket amps.