pionions on the avhp6800dvd? im goig 2 have my mini ps2 in my glove box anyways so i am considering the D3 but i do like this 7 inch screen... any opinions?

Also any idea what the SKU /msrp for the nav add on is for the 6800?

There is no add-on Nav available, unless you find someone that has one laying around. And at the point I am not certain it will accept a navigation. Pioneer quit making stand alone navs about a year ago...maybe two.

thanks that eliminates that one for me

The AVIC9/90/80/88DVD will all work with your deck. The most current software that will work is the 2005 disks, but there is supposed to be an 07 model that will come out during summer that will give the mapping of the D3