No sound from speakers
My sister bf attempted to install subwoofers in my mothers car and was
unsuccessful. Now the radio turns on but no sounds comes from the
speakers. I have no idea what exactly he did so I dont know how to back
track what he did. is it possible he fried the system and ruined it or are
there some things i can check and see if one of those things fix it? any help
would be great. my mom is pissed.