I bet you have a mono line-in cord. They sell stereo ones, so if you have one or can get one that is stereo, give it a shot. You could also try the microphone, provided you turn the synth volume down low.
I bet you have a mono line-in cord. They sell stereo ones, so if you have one or can get one that is stereo, give it a shot. You could also try the microphone, provided you turn the synth volume down low.