SGOSINE

Aloha, I've got a 1990 Fleetwood Flair motorhome on a [b]E350 Ford Chasis with a 460 EFI gas engine[/b] with cruise control integrated on the steering wheel, I am trying to install a 910BT but need help finding the VSS wire, Reverse wire and if possible the Illumination wire. Any help would be greatly appreciated...