I'm curious to know if it matters which audio jack (RCA) in the back of my receiver (RX-V2400) I would connect a portable XM Roady radio unit. I have MD/Tape, CD-r, and phono jacks free, and I've been using the MD/Tape jacks for sometime now. My question is does it matter sound wise if I use any one of these free jacks?

Will the sound be different using one specific RCA jacks from the other? I guess there must be a purpose, besides ease, why they label certain devices to be connected to specific jacks, no? Maybe its time these new receivers started coming out with dedicated XM radio jacks.

Help.. anyone??