so this is obviously a common problem, but my nissan altima has a bad alternator whine. It increases when the engine is revved. The whine goes away when my alternator is disconected, or the RCAs are disconected. I ran the RCAs on the right (passenger side) and power cables on the left. I tried two different RCAs both made no difference. My amp ground is soild, its grounded to the seatbelt bolt. The headunit is grounded well too. any ideas?