Audio Systems: subs, mute button, fuse

Question
i had my suv worked on and my subs  do hit like they used 2
whats Wrong i have to turn the  radio up really loud  to hear the subs hit
are they blown
is the fuse bad
or wat

Answer
Hi Justin, If I didn't know better I would say you had the "mute" button" switched on or the "phone mute" wire earthed, other than that is the input on the amp turned down?
Could there be a short / cable trapped and earthed on the speaker leads? (check each pair with a meter for resistance.
Peter