Just hooked up my Z1 Wow Wow can't say enough on this radio to people, its like my new little buddy. The light trick how can it get any easier increidable. But need to see if anybody out there knows were the speed sensor wire is in a 06 E350 ford van. The only thing left to do. I dropped 3K into this system and wow sounds great in a VAN lol work van to boot. If someone can help on the speed sensor wire Thanks

Did your stock radio allow you to push in the power/volume knob and access speed volume? If so there should be a second harness with a grey with black stripe wire, tap the pink one into that.

I would imagine the Excursion is quite similar to an E-350.

~WW

Under the hood, driver's side. Under the radiator overflow. Cruise control. Gray/black wire.