Thanks for the info JackG and MNBoxster! The noise is still there but *very,very* hard to detect now...Many people have brought up the bad diodes diagnoses but since the noise is now gone should I still have the alternator tested? Maybe its on its way out.?.?. and needs replacement? Again...thanks to all....funny how Crutchfields' techs advised me to just deal with it...or return the unit.
