Pioneer EFX 500 aux send return?

Does anybody no How I can set this up to work with my setup. I have Mpc 2000 and a Makie 1604. I want to use the EFX through the aux send return on the Makie. How do I connect it? Any help is appreciated

fx input to aux send 1, fx out to aux return.

Repeat if it has many channels.

Thanks very much