That rattling at idle.

ZFastest

I'm late to this thread, just found it trying to diagnose a similar rattling sound on my 09. One big thing though, my sound is almost identical to the two videos posted and mine is an automatic transmission not a manual transmission. This leads me to believe it has nothing to do with the any part of the clutch or transmission. My first thought is that it was something loose under the car so I jacked it up and ran the engine. I inspected and jostled everything I could put my hands on and found nothing loose or vibrating and nothing I could ID as causing the sound. I concluded it must be something internal to the exhaust, what ever that could remotely possibly be.

Curious to hear from others that suffer(ed) this agonizing rattling what is is/was. Next step is to take it over to Nissan and let them figure it out.