take a trip to radio shack!
they have oodles of adapters.

the head phone jack may be 1/4 " phone jack or 1/8 (mini)
(these are often called Tip,Ring and Shield)

one with two "rings" visible on the plug is stereo.

what inputs does the c.d. burner have?

XLR (3-prong microphone jacks), RCA, the red/white/yellow ones,
or some other?

there are pictures of some of these adapters here:
http://www.audiogear.com/connectorsandcable.html

it is quite common to find an adapter chord with 2 rca jacks
(red and white)on one end and a stereo mini-phone jack on the other

good luck...you could either move the units closer or get o\longer
wires between them, although there may be some line loss if toooo long