I bought a 94 honda accord ex and the cd play and cigar lighter wont work the guy i got it from said when he hit a bump it would turn on and hit another bump and it went out again i have no clue what to do i think it sounds like a bad ground

 

Could be a ground, relay or something else. As you can see the WHT/RED out of the relay go to both the radio and cig lighter.

 

Check the fuse first of all.