bose radio and rosen dvd player

[strussy]

i'm a newbie. anyone out there know what to do for the bose raido to hook up my system? and i have a factory rosen dvd player under the seat and a monitor in the head liner,but dvd player reads disc error tried evey cleaner and even took it out and cleaned the lense with alchol and still nuttin please HELP!!! my sysytem contains P/G AMP for highs and SOUNSTEAM 1000 WATT for subs 2 12" R/F P3'S