Audi Repair: fuses, amp fuse, sony xr

Question
my son as put some coins into the sony xr-7031 radio cassette.We managed to get them out,but the stereo does not work now.there is no power to the radio,cassette,or the cd changer.I have checked the fuses next to the drivers door and following the diagram the 20 amp fuse is ok. I would like to know if there are any more fuses in the vehicle and where they are situated so i can check them, the car is a 1995 A4. Thanks!

Answer
hello
sorry , but I only know about 1 fuse . If you have good fuse , power sould be at radio. You can also, check the wire from fuse to radio , that will tell you if it goes straight to radio
I do not have wire diag, for older A4
good luck                pltech