That definitely is not your starter. Not sure what all it could be but that is no good. Sounds like maybe a flywheel issue somehow, maybe throwout bearing is giving out.I know that this thread is ancient and I apologize for reviving it, but my grind STARTED as being only occasionally when I started it (I live in Texas, so I doubt it has much if anything to do with cold) but over the last week it has started to also grind while driving. It won't grind while it is in Neutral, but it will grind in gear from about 2500-3500 RPM. Could this still be the starter or is this an unrelated issue? Mine is an 03 type-s with about 150k miles on it, so I could also see that it could be the timing chain and/or tensioner.
Any info would be appreciated.