possible fusr problem?

today while driving my stereo stopped playing
there is no static sound (so i dont think i blew my speakers)
im thinking it is the fuse?
but i dont have a manuel so i dont know what fuse to change?

does anyone have a diagram of a 1992 mercury sable fuse box?
or knwo what fuse i should change
or chould it be something else

any helo would be GREAT!

TIA