I will be hooking up my rockboxed ipod video 5g to a cmoy headphone amp thru the ipod's dock connection not the headphone output. Will the rockbox sound features like the crossfeed and eq settings work thru the doc connector output? I could just use the headphone out to connect to the amp, but I thought the line out connection would be cleaner. I need to know before I order the dock adapter cable if it will work. Any help would be appreciated.