Im technically inclined, but i dont know anything bout these amps. I was havin the same troubles like everybody else. Man, I love this car, it gets me crazzy puntang!
Anyway, if the amp was faulty, I cant hurt it no more, so i opened it up took the boards out....I was goin to use my multi meter and just take measurements across all the components that duplicated or were the same size, if one or two didnt match, i was going to replaced them.........However, before doin that, i closely looked at the boards, you wont see anything obvious, but look at the big round capacitors
, theres 10 in groups of 5.
I saw 3 capacitors that had slowly grew a minuscule larger than the others, you can tell by lookin at the ones that have stretched the labels....i will try to upload pix later..i replaced them, put everything back together and now my pu c level is through the roof
might work for u, it work for me....