I just hooked up my 300w Jensen amp and my 2 10" Advent subs but I'm not getting any sound from the subs.. I know the subs are fine because I had them hooked up to my home stereo. I get power to the amp when I attach the power lead wire but the subs don't make noise. I have the ground and power wires hooked up and they're both 8 guage so I don't think the wire size is a problem. All the connections are good, I checked them several times each. Does anybody know what the problem could be? Also when I hook up the input wires I get a buzzing noise on my front and rear speakers in my car.