Squeek/chatter - deep, mid dash

Hello y'all - new member, attempting to learn my way around this forum.

I have an '03 v6 5sp that I bought new in Nov. '02. Completely stock, no mods. Mileage around 70k. Over the past 3 or 4 months, a new squeek/chatter sound has developed. Sounds like it's coming from DEEP in the dash, about midway between driver and passenger, maybe slightly more towards the passenger's side. I pulled everything from the center console - A/C controls, radio - and let it just hang while I drove the car - problem persisted. Only happens while the car is moving - no squeek when parked and idling. Had my wife drive the car while I laid on my back with my head under the dash - passenger's side, of course - and searched. Kinda wish I coulda seen that sight from another driver's point of view. Anyway, still no luck.

Kinda wondering if this squeek may be coming from the engine compartment. It's definitely vibration related - the rougher the road, the more constant the squeek. Extreeeemely annoying.

Thanks,
Hal

wiper cowl

the key word here is GENTLE. i applied just the SLIGHTEST pressure on the wiper cowl, and obviously in the WRONG place. clean snap - all the way. fixed the damn squeek tho. and even tho the cowl is in 2 pieces now, they are obviously snug-fitting enough not to work themselves completely loose. did this about 6 months ago, and no more squeek. wish i had been a little more careful.