Just purchased pristine 03 TL (non-S). Satin silver, 22000 mi. Noticed at idle, with car windows closed, radio off, and climate control off, a 'rushing' noise at idle. Sounds like water rushing-- noisecoming from front center console, but sounds removed, ie sound doesn't originate from inside, but outside. Car runs great, perfectly smooth idle, no issues. Getting 23 mpg city, and just got 32 mpg on a trip. Is this my imagination?

 

prob you looking too much into it.