99 gt 03-04 cobra swap

Has anyone done this swap. The motor is in the car the front harness and computer is in. the dash harness is in as well as the gage cluster. I put in the 03-04 factory heat exchanger. The best part is it all fits with the factory gt bumper and hood.
I am looking for
throttle cable
some dash stuff
the electrical box on the trans tunnel under the radio not even sure what that is there are 3 wires or connectors that plug into it.