Stereo Mini to 1/4

Connection: Stereo Mini (headphone or line-out source) to Mono ¼ inch

Plug this into your MP3 Player (headphone or line out jack) (black end to MP3 Player)

and attach each coloured end to one of these, then connect to any of the ¼ inch inputs for Channels 1/2/3/4:

-= OR =-

If you prefer not to use 2 Channels you can use this (occasionally controversial approach of summing to mono without electronics to support it).

Attach coloured ends to this:

Male (pointy) end then plugs into

Channel 1 or 2 (allows control of tone and relative volume from R1 Remote)

-= or =-

Channel 3 or 4 (control from music source)

You could get two RCA to 1/4" adapters, but then you would have to use both channels 3 & 4. Since the L1 is mono, there is no particular reason to use two channels.

Click the images to see the ordering information if you want to get them from Radio Shack.

(disclosure: I have nothing to do with Radio Shack but they have decent pictures).