How to bypass Passkey 3?

I remember the 555G as being very failure prone, constantly needing to be reset because the passkey 3 system uses a transponder key which isn't easy to bypass by design.
As far as wiring them in you would need to specify what the instructions say for the wiring you need to access, the company dropped that module years ago and removed the installation information as well. I looked at the instructions for the button and looking at how bad those are written explains why most shops first step to repair a vehicle is to tear all of the aftermarket stuff out. I also see that there is no provision to unlock the steering column or shifter without using the key or doing a lot of other modifications. I would suggest getting a short-term subscription to the DIY versions of either Mitchell or Alldata so that you can print out and study the wiring diagrams and determine what the instructions mean and what wiring you need to access. Personally, I wouldn't even use these things because of how often they fail and how easy it would be to damage the car if you connect the wrong wiring. Not what you want to hear but it's the truth.