Main Source (c) is my Ipod CLassic that stays in the USB port of the Fusion. Searching for songs sucks with Sync2 as it's slow as balls, but it's usually on shuffle, so it's not too bad. Bluetooth works for streaming music from my Google Play Music app, Youtube, Netflix, Pandora, etc. Sirrius/XM radiofor either comedy, hip hop, Motown, or the Beatles (don't judge me). Since the iPod is probably on borrowed time (I need to change the battery and I do worry about the HDD dying on me) I copped a 128GB SD card and popped that in the slot. Don't like it as much as searching for music is still slow, and albums have that annoying pause in between tracks (which is one reason I'm not giving up my iPod as long as I can). And on the occasion I haven't ripped a CD to my server and then to another device I'll pop one in the CD player (I think Choose Your Weapon may still be in there now...)