You have a rip on the speaker wire itself and its touching the body panel/ ground, best to run new quality speaker wires, are you using stock wires? Better to check the radio harness for a break, also the crimp connectors. If you find the problem behind the radio, thats usually the connectors on the harness, if its the doors, that means u need to use better connectors if u find that break.
who installed your stereo?
who installed your stereo?
are you saying you found metal shavings around the alpine deck? if thats the case, might as well get a new radio, the alpine might be shot on the internal.
so no more popping from the speakers?