Btw be sure to visit that audio shop to laugh in their face
and tell them to test head unit rca preouts next time. Those fking clowns actually dared to charged you for a retarded ass diagnosis.
My stupid ass went to their other shop to get my deck tuned for my last amp and deck I had, within 24 hours.. the RCA's went bad. Then I went to them 3 days after hooking up my new Taramps amp & head unit, for a tune, within 5 hours.. the subs lose bass and I just hear crackling coming from them. This was the shop completely different from the ones who talked shit. I find it shitty this happened twice where my components are shot within 24 hours of tuning. Of course, I'm out of my manufacturers warranty on the subs so they can't do shit. I spoke with the manager and he said they can't answer anything unless they look at it but I'm sure that will cost an arm and a leg.
I'm beyond pissed.