Don't know if anyone else has this problem but when my stereo is on but no volume (both radio and CD) I get this click, click, click noise. Sounds like an old vinyl record at the end of the tracks. Not real loud but there for sure. Seems to come from the driver's side triangle speaker with the MACH lettering. Still under warranty but I'd hate to drop the car off for that only to have other problems begin (happens about every other time).