Nice write up, if at some point it will just not work can you just simply install your original PCM?
Are there specific steps needed?

So no answer from customer support about the gateway bypass cable install Video and instructions being wrong. However I just installed the cable and PCM and can confirm the Video/instructions are incorrect. The green buss connector is located under the glove box NOT DIRECTLY BEHIND THE OBD2 port ...

https://youtu.be/owaQ33DzcWU

This Video states the Green Module is located directly behind the OBD2 port. However the Video shows it under the passenger kick panel.
They need to fix this very confusion. Even the instructions I received stated this.

My T2 / PCM will arrive tomorrow, please clarify why the Video of the bypass cable install is saying the connector to plug into is located directly behind the ODB2 connector. This can not be right, unless Im missing something.

https://youtu.be/owaQ33DzcWU

Is the Video wrong?
Your Video says the connector buss is located behind the OBD2 port. Yet it looks like its being connected under the passenger side kick panel. I just ordered mine and now I’m confused. Please clarify!

Going to order mine soon 2018 RT Challenger. The Video I saw showed the bypass cable being installed in the trunk. I opened mine up and have access to both green and white busses in the trunk. Can I still install the bypass cable that way or has something changed?