Hey guys, hoping you all can help, I just put in a Pioneer amp GM-5200T and now when I turn up the volume a little bit it pops the fuse, checked ground and is good, previous amp worked fine, just went with something with a little more punch. Also, I have 4 guage power and ground wire. I'm stumped

 

Found the problem, my inline fuse block had a short..the actual lug had a crack in it, replaced it and no problem.

 

Glad you found the problem. Tracing down things like that are allways a pain in the butt.