shifthis
New member
I have the JBL stereo in the truck and I replaced the head unit and used the scosche adapter for the speakers. I also added two 10's with a seperate amp. The subs have no problem whatsoever but the stock speakers are all screwy, sometimes only the front plays and then other times only the back plays and the other day the volume was going up and down on its own. Is this bad RCA outs on the deck. A bad scosche wiring harness adapter or is there something wrong with the stock JBL amp. Those are the only things I can think of that could be going on. Has this happened to anyone else? Did I do something wrong on the install. Any help is appreciated.
