The usb port on the Gotway Tesla is a pretty dumb idea. It only pushes 5v at 1a and that's only if the wheel is on. This mod basically replaced the usb with an ignition module. The key switch and the button are soldered in series, so when the the wheel is locked, it breaks the loop and renders the button dead.
So, I went ahead and replaced it with this switch I bought from Amazon. You can probably find it cheaper on eBay.
Jameco Valuepro IG-406D-2341 Key Lock Switch Single Pole Single Throw Round Terminal Key #2341 All Keyed Alike https://www.amazon.ca/dp/B00B88DI98/ref=cm_sw_r_cp_apap_qlHD7XRPqwLlB
1. Take off front shiny panel from the wheel
2. Gently pry out the front interface then remove the USB module.
3. Drill the hole slightly larger and insert the key ignition module. I have my lock faced vertically when the wheel is locked and side ways when it's unlocked.
4. Assemble everything back on and reapply hotglue
Here is a demo of the key switch