Stereo shot?
 

So went wheeling in my back yard (own 18 acres

) for 3 hours with a buddy and did it for twntey minutes yesterday by myself.
Two issues

My fuse. Melted going to the positive post from my battery was a mess from original owner and did a quick job to get my pickup running again because that ran everything so I guess starter too no electrical was working then so out a positive wire from extra stereo wire laying around my buds house. Works fine. Trying to find what part I need to get from a toyota dealer
2. Went wheeling yesterday hit a rut. Stereo just stopped working and amp too SHORTED?
I have no idea how to rip apart my dash to get to stereo (first truck and I'm 18)
Any help on either of these issues would be greatly appreciated. Sorry if I posted this in wrong section

Crap sorry guys posted this in wrong thread!