I have exactly the same symptoms. Everything you described is happening in my car. I also did the same digging and can't find where exactly it's coming from. Mine started 2 months ago!! I was going to start a thread about it but I found that you have the same exact issue.
My car is 5spd with 65k miles.
Last edited by AlexTheMan; 05-18-2012 at 05:57 PM.