I am needing a 3.5mm jack to 3-cable a/v adapter with yel/wht/red to hook up the captivate to my Head Unit in the car.

or micro-usb to 3-A/V

any luck anyone?

Rob

Easy to find these if you'd searched for them, even just on google.
Here's a link to amazon.com with a whole list of them: LINK (http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=3.5mm+to+av)