Dress up like Captain Chaos.
I have a 1978 Kenworth without any form of computer, electronics, etc. other than my am/fm stereo with "high fidelity sound", and my CB radio in...
I have a first gen 565 ISX that I solved the enging brake issue on myself, after several attempts and $$$ at my favorite shop that kept missing...
Just a word of wisdom to never use SE Freightlines to ship anything if you can avoid it. I had a quote of $158.00 from them to ship one skid...