Navigation hook up

sup i got a pioneer in dash 6600 dvd,cd mp3 all that shyt. its navigation ready, and on the pioneer website says the cd's are compatible with my tv. is the cd's all you need or do you need another unit or something? thanks heres the linkshttp://www.pioneerelectronics.com/pna/product/detail/0,,2076_238821110_236658268,00.htmlhttp://www.pioneerelectronics.com/pna/product/detail/0,,2076_4023_77401213,00.html

I'm pretty sure you need to buy the whole nav unit since you don't have it built into that radio.

Yep, you have to have the whole navi unit. I used to have it on mine but got rid of it.

Yes, you do need the navigation brain that will except the East and West Coast discs. Pioneer PN# AVIC-880DVD. Retail Price $1200. I work at a audio store in NH.