Until recently, I never thought I could actually install a receiver for a garage door. But that all changed after I did a bit of research. The Marantec RS-02 is by far the most versatile and simple receiver I've ever seen. By just plugging it in and connecting two wires, I could start using my Marantec M3-2312 remote.
I'm thrilled, because I never thought it would be possible for me to actually install something like this myself. It is also nice to know that if I would ever need to replace the Marantec M3-2312 remote, I can do so with an upgrade to the Marantec M3-3313, because both are compatible with the Marantec RS-02 receiver.