You're full of good news!.. I own cheap amps + I live in Phoenix... LOL!...//content.invisioncic.com/y282845/emoticons/suicide.gif.a649d21efc0d1fd4890a6428166586c1.gifautozone and advanceauto will do it but i dont trust their equipment. its tested my batteries bad and i know they werent. no idea why, just cheap equipment im sure.
dont let it get that hot, it may have been a really hot day when it popped the fuses. heat is the enemy of electrical components, theyre designed to handle it within certain limits, without going into the technical details just understand they have a lifetime rating at certain temperatures and it goes down with higher temps