xPerX

I have a Skar EVL 15" 1250 rms watts 2500 watts peak. I have a rockville DB16 8000 watt peak, 4000 rms. Had someone help me hook it up, We had the negative connected while we hooked up the positive. I plugged in my rca caples and I heard the connection noise from the amp when you connect the cable. I don't recall if the green power light came on or if it was protect light. when i turn the car on, it goes straight into protect light. I havn't got to use the amp/sub yet. Did I blow the amp?? Subs good still. Amp goes protection light, and Rockville is lit up in blue leds. Is this a connection problem? It came with 2 fuzes, a 230 and a 250, I have the 250 connected, Do I need a fuze connected to a wire/cable in the hood? is that what the 2nd fuze is for? 2nd fuze is being unused.