You want to make your car as different as possible from the standard GN/Ttype setup.
If a thief wants a specific car, they are going to do their homework, and find out where the wires go, the colors, the quickest way to get in, how to defeat the factory systems...etc
This is all fine if they are attempting to steal an untouched factory car. Now, if you change wire colors, where wires go, etc, it makes that job a lot tougher. And anything that is gonna take them more time to figure out is gonna increase your chances of keeping your car. Time is their enemy.