Rep Power: 317

Hey guys...i just traded a HID kit with Wes for an Alpine V12 mrd-m500 amp. I hooked it up and the amp is powering up. Only thing is that no sound is coming out of the sub. I DL'ed the instructions manuel but shiet that is confusing as hell, i never messed around with a digital amp b4. I turned the safe mode off already and still nothing. I dont want to jump to conclusion and say that Wes traded me a dead amp. So I was wondering if anyone near fullerton, brea, or santa ana area is an expert on digital amps and can adjust everything for me.
Thanks.
Mike