Originally Posted by Jagged14u2

I too have had the same noise coming from passenger side, behind seat near rear speaker. I have had the car to the dealer 7-Seven times for this problem. It only occurs on older rougher roads (not newly paved). The dealer has checked all the plastic, foam, and wiring harnesses. It will go away for a week or two then return. This is ridiculous for a $40k car that Nissan touts its quality and craftsmanship. Any help or ideas would be appreciated.

Thanks.