[mshook]

Rewiring the pins doesn't necessarily do much these days as there are devices which will figure out the input pinout and route signals to the proper output pins. Think of it as a MITM device.

A better way is to use a different kind of connector but you'll have to build yourself an adapter and to keep in your place or something.

[taneq]

Remember to put a standard-looking dummy ODB2 port where the original was, so any would-be thief has a convenient place to plug in their dongle.