Radio keeps changing bands on own?

[TSTONE]

I have a 1997 Mountaineer with a JBL sound system - recently the radio has started band jumping on its own. cycling from fm1 to fm2 to am again and again

Has anyone else had this happen and know where the problem lie?

Thanks
T

 

[fixxxer]

sounds like a bad switch or a bad connection on the radio controller circuit board.

 

[TSTONE]

sounds like a bad switch or a bad connection on the radio controller circuit board.

which switch and where would i check the connector?

Thanx
T