Does anyone have one of these and know how the line-in works? It has RCA phono plug-type line-in jacks, but no dedicated line-in function. I've tried pressing play and record on the decks, but to no avail. Hopefully someone can provide the answer! 
Also does anyone know where I can get one of the carrying straps from?
Also does anyone know where I can get one of the carrying straps from?