x RELIC x
Headphoneus Supremus
Ok, so what kind of plug should be on the Mojo side.
This is the type of 3.5mm 2 pole mono coaxial (Mojo side) to RCA adapter I used to connect the Mojo coaxial input.
Pic from the review.
Or, you can pick up something like this (choose your end).
http://www.custom-cable.co.uk/custom-cable-cc35-3.5mm-coaxial-cable.html