On my way home from running errands I noticed my car making a low humming noise. I turned off the radio and A/C and could still hear the humming - low pitched and steady for the 2 blocks to my garage. Rolled up windows and can tell that it wasn't coming from inside. Had to move car to street parking - no hum.

Cars & Trucks - Infiniti - G35 - 2004 Infiniti G35 Sport Coupe