jus wondering if anyone has figured out the speed sense wire for an 08 f450 for the z2?

Should be the same as the other super dutys. At the wiper motor harness. I posted a picture here somewhere. Sorry forget the color at the moment.

i read something like that but i thought it said that it would only work if the wipers were on?

works regardless. Actually did a 450 for an eclipse nav today. It's a yellow/blue wire. You'll recognize the harness goes into the firewall right about where the wiper motors mounted.

http://avic411.com/forum/viewtopic.php?t=10809

This thread has a pic of the harness the vss is in.

thanks bro i appreciate it