Hi I've installed my own amp+sub into my car. I thought I was right matching the RMS up, there both 300vRMS (I've read that I should of got a smaller amp). So I had it pretty loud today and it just stopped working. Wired up another speaker and the amp is working fine. checked the internal wiring to it, visually it looks ok. I have no tools till I go into work on monday, so I was wondering what could it be thats broken? anything that I can replace?