You need a DIY attitude. And not just a we renovated our bathroom DIY attitude you have to be really willing to dig into understand how and why this works and where it’s gonna not work correctly with your particular vehicle.
It’s already an expensive device that goes in an expensive vehicle driving on public roads where you can get cited tickets or possible liability if the thing really misbehaves and getting an accident with it.
I consider myself extremely DIY/hacker and this is one of the things that I’ve really struggled to get past the mental hurdles.