i have a problem... i installed full system an alpine deck 3 pairs of rca's 1 front 1 rear and 1 for the sub then two amps one is sony 4 channel for all the speakers and the other one is alpine for the subs ran .. ran new wirers to all the speakers except for the front side cuz my cross over broke when i took out the speakers from my other car.. but after i got the front left side working i got the back left working fine and then when i conencted the rear right i started getting a popping sound out of the rears when i swich the song or pause it or switch nething but otherwise the sound is perfectly clear. does nebody know what that popping sound is and how i can get rid of it (btw its only in the back i disconnected the rears ones now and i just have one front one working and its fine)

 

It could be something wrong internally on the head unit. Maybe low shielding or something, but an Alpine I wouldn't really think so. Try it with a different set of speakers, swap out with a different amp, just go through all the things that it could be to narrow down the problem.

 

hey i did everything possible i changed the rear speakers changed amps for rear speakers changed ground and everything like that and it still does it, so then i just plugged in my old double din alpine 3da w882 and everything works perfect no popping sound coming out of any speakers, i guess then theres a problem with the head unit
now my ? is does anybody know what could be wrong with it and is it possbile to fix it
thanks

 

hope u bought a warranty!

 

yeah, hope you still have a warranty or a friend in some electronics field. Not anything inside a HU that is serviceable by anyone except a trained pro. Find your warranty and take it back to wherever you got it.