Vss wire at Radio

[blkgrape]

I'm planning on installing a nav unit/dvd player and figure that there must be a VSS (Vehicle Speed Sensor) wire in the factory harness since we can activate the Speed Volume input on the factory radio.

Anyone know which wire it is in the harness or where can i grab it easily, ie at the computer (again Pin out)

Thanks for the help

Roly

[Shaft333]

My chart indicates that it's a Gry/Blk wire... number 14 on the connector to the radio.