Yeah, that’s the right one. No idea why it’s not working. A screenshot might help, especially of the tile with the controls. I wonder if you have both an electronic control unit and a regular controls in the same tile, and they’re interfering with each other?
An electronics control unit pretty much does what it says on the tin: It lets you control the vehicle’s electronics, such as lighting, minifridges etc, but not drive the vehicle. A regular controls does all the same things, but lets you drive the vehicle as well. The electronics control unit is mostly meant for large vehicles with multiple “rooms”, to let you control things when you’re not in the main cabin.