To use the Active Gate Wheel Rotator with an old style projector, you simply need a connector cable which connects in to the back of the Active Gate Wheel Rotator, which then allows you to plug into the side of an old style Solar Projector.
Please note, all new Wheel Rotators (Post 2017) are now manufactured with an Active Gate fitment, it means that they are now wireless. They are used with the new Solar LED Projectors and simply slide in to the projector as before, without needing to plug them in.
Optikinetics