Getting both speakers to work on a //e?

[obsbedia2@aol.com (Obsbedia2)]

Picked up a pair of new, modern speakers at Big Lots (Pick 'n' Sav) today. 
Used a cable from a DoubleTalk card to connect directly to the motherboard's
speaker connector and the .wav files never sounded better from the //e.

Problem A:  The speakers are stereo and the Apple //e ain't, so only one
speaker works.  Any way to get both working?
 
Problem B:  The headphone jack seems to be having even more problems.  I'm
using stereo headphones, but I can't even get one earphone to stay on--just
bits of sound as I wiggle the jack.  Solution?
][ Infinitum!
JaY