Pioneer head unit does not work?

Question

i have a pioneer head unit in my accord then i switch it to my subaru. it was working fine. then i went over a speed bump and stoped working. there no sound at all but the head unit still displaysi check all the fuse are fine and all the wire are connented good . there no sound when u put cd or radio

Answer 1

if u have the time see if another head unit will work. that could narrow stuff down

Answer 2

maybe some wire came loose because of the speed bump so check all connection are ok if not then take it to a pro