I have an XM EZ-R unit and bought a home docking station to connect it to my Denon 4308ci. I have it connected using the audio cable that came in package mini to rca....I have connected it to the XM radio and the DVD audio input on my Denon and I am only getting sound out of the left front speaker (m80), how do I get the audio over the right as well? Thanks.

Sharp Aquos LC60LE650U/Onkyo TX-NR5010/Axiom M100/Axiom VP150 v2/Axiom EP500 v2/Axiom QS8 v3