my subwoofer amp stopped turning on and I think that the fuse on the battery line is blown. Anyone know where I can get another 100 amp fuse like it? any help is appreciated because i know absolutely nothing about this stuff
No.. You don't need a 100A fuse unless you have a beast system. Depending on your watts.
To play it safe, if you can't get a 100A I would go for the next biggest one.
Any sound system shop will have those fuses available. If not hit me up and I can take a look at your car. I'm a certified tech and have experience with sound systems. Once I had an issue where the actual power cable created so much resistance that it would pop its battery fuse. Cheap cables can go bad over time.