This is not for my car, it is for my friends Jetta. His fuse keeps blowing out on him and its when hes not even putting it really high. First off here is his system if it can help to determine whats wrong12" JL W6500/1 JL AMP300/2 JL AMPAlpine HeadunitDistribtuion Block (obviously)4 Gauge WiringWe just bought a 1 Farad cap and a circuit breaker to see if it can help resolve the problem. So how do you install a circuit breaker and what could be the problem for teh fuse to keep blowing?