We have a 2007 Chrysler Aspen 4x4, 5.7L engine, still a beautiful vehicle, 161,000 on the clock; In last couple of days we notice like an electric buzzing sound that only last like 2 seconds at a time that seems to come from by glove box or maybe even right side passenger seat or right behind seat. It does it randomly going down road straight or turning, doesn't seem to matter; cannot figure this one out. Hoping someone else could share info on this strange issue. The vehicle has no electrical issues at all, no warning lights or anything, still runs and everything works fine.

 

Found it; passenger side door lock buzzing sound when locking but not when unlocking.