So I have your typical alternator whine. Funny thing is it's only in my right rear speaker. My first attempt to kill it involved opening up my Empeg (Mk 2) and reseating all connectors. I examined both the docking connector and the two mainboard connectors to see if any pins were loose, etc. None were. I buttoned it all back up and the whine was gone... for two days. Now it's back. As bad as ever and still in only the right rear speaker.

Any suggestions as to what I should do next?

Cheers.