speakers cut out on bump

When I hit a bump in the road my speakers cut out. Its seems to push out sound when it wants to. The rest of the radio seems work and is lit. I pulled the radio and checked the connections and all look sound. I have the delco radio in my 99 yukon. Any suggestions?? Thanks for the help.

i had this problem once and found a wire was grounding out when i would hit a bump. when i would hit another bump they would come back on as long as the wire wasnt hittin metal ne more

Could be a problem with the factory amp, (if you have and amplified system).

It can be a ground like the other guy said above if is an aftermarket radio it could just not be skip resistant, to me it sounds like a bad wire connection