iSimple TranzIt Radio Integration ipod kit -help-

[TheGodfather]

I just purchased the an aftermarket ipod integration kit.

1) I need to find the radio antenna connection
2) "Using a multimeter, identify 12V+ and ground wires behind the radio.
a. connect the puri red wire to the 12V+ (ignition)
b. connect the puri black wire to the ground
c. connect the vehicles antenna into the puri antenna input*
d. connect the puri antenna output into the radio"

Are these connections behind the radio in the X? Is the radio antenna connection in the rear of the vehicle?

Thanks for any help,