Round seven of Name That Vehicle, (Texas especially)

Originally posted by sapper740
R., perhaps you didn't know this previously, but I'm an Electrican. your tip, "ground connection" is more than likely going to lead me in an entirely different direction than you had planned.

Quite so, the allegory is entirely intentional.

And in a similar vein, I am a radio comms, crypto and electronics engineer as produced by GCHQ.

R.