creative concepts
+1y
the remote wire shouldnt of burnt, all it does is carry a 12v to the amp to turn it on, the 4ga wire you have ran does the actual power supply. I would run a new remote wire, make sure its not grounded out and has a solid 12v source.
as for the amp.. what is the specs on the amp? metal pieces broken and stuff sounds like a power surge and there wasnt the right fuse in line to save the amp and it popped. Do you have any inline fuses on the 4ga power? Check your 4ga ground wire from the amp and make sure it is completely solid.