Now that it's warm out, I've been driving with the windows down. I started to notice a 'squeak' whenever I would hit the gas a bit. After monitoring for a bit I noticed it specifically occurs when switching out of AFM, V4 to V8. It's a pretty loud sound, and kind of drives me nuts. Has anyone else experienced this? I'm trying to decide whether or not it's worth it to take it to the dealer to look at, it doesn't feel like there's any issue mechanically - just an annoying sound.