I have 2 questions. I have a friend who recently put a censor in his vehicle. I do not know which censor but its starting to shift rough. Is there a relearn method for instances like this? 2nd question is the speakers in the front do not work and when you hit a bump they work but just sitting thy do not work. I heard that chevrolet put horrible cheap speakers in them but I dont know how both would stop working at the same time. It has the original speakers and radio.
Which c(S)ensor did your friend replace?
You door harness probably has broken wires in it. Going over bumps causes the speakers to work momentarily.
I don't quite understand the first part of your question. For the speaker, you open the door panels and check the wires and also power at the speakers. You may only have loose connections. Good luck.
@yaser
I think he put in an X-rated censor because it was dirty!