Start by dis-connecting the power lead at the amp, and securing it (where the bare wires are not touching ground) Now insert a new fuse then make the battery connection. If the fuse blows then you need to trace the power wire to find the short, or replace the entire wire, paying close attention to sharp edges and pinch-points that could cause this problem to reoccur. If the fuse didn't blow, dis-connect the power lead at the battery then all of the other connections at the amp, reinstalling the power lead to the amp. With only the power lead connected at the amp and the good fuse inserted, reconnect at battery,and if the fuse blew then the problem is with the amp. and should be repaired or replaced depending on its value and the cost effectiveness of those two options. If the problem has not yet been discovered, continue with tracing each of the remaining amp wires in that manner, as been described above. Good luck...
Answers & Comments
Start by dis-connecting the power lead at the amp, and securing it (where the bare wires are not touching ground) Now insert a new fuse then make the battery connection. If the fuse blows then you need to trace the power wire to find the short, or replace the entire wire, paying close attention to sharp edges and pinch-points that could cause this problem to reoccur.
If the fuse didn't blow, dis-connect the power lead at the battery then all of the other connections at the amp, reinstalling the power lead to the amp. With only the power lead connected at the amp and the good fuse inserted, reconnect at battery,and if the fuse blew then the problem is with the amp. and should be repaired or replaced depending on its value and the cost effectiveness of those two options.
If the problem has not yet been discovered, continue with tracing each of the remaining amp wires in that manner, as been described above.
Good luck...