ok i've got a problem with my sub, when i turn it on you can hear the sub "hit" when you hit the gas, or when i hit a switch on my air ride. Can anyone help me out? I've got a Pioneer TV/CD, hooked up to one 10". My power supply is stright from the battery to a dis. block, which takes 4 ga. in and 8 ga. out, one goes to my compressor, the other to the amp. Also this happens if the comp is on or off. I've got a good ground, never had this problem before. Please Help!!