It might be your 860 as they are notorious for noise problems. I would switch out the 860 and see if the whine goes away.ok, now back to the whine, anything else you guys think its causing this issue?
That's what I would do first. Good grounding spot, sanded down to bare metal, blah blah blah.I'd say try finding a different ground. I would think the seatbelt bolt would work, but try a new location to eliminate that problem.
yeah, in your case it was just too much high of a gain.hmm i dunno if you recall but i had the same problem. i asked this question over at ECA and the poster named abmolech had some real technical shiet. check out the thread, http://forum.elitecaraudio.com/showthread.php?threadid=124022. maybe that can you give some ideas or you post on that thread and he'll help you out.
as for my situation, i just set my gains correctly with a DMM and alternator whine is gone!