I have just received my unit and wonder if anyone knows where to connect the speed sensor on the 2007 Grand Cherokee.?

Only way to get a useable vss in that truck is going to be to get an interface. Probably run about $100. the up side is it'll give you all of the needed wiring right at the radio. No need to run wiring all of the vehicle. Part number escapes me at the moment, but I'sure someone else will chime in with that.

should be a CHTO-01

chime