You can do it if you use a non ibus Sirius unit . If you have a regular Sirius unit like a Sportster , replay , or what ever , use the pin jack to RCA audio cable ( red / white ) and plug into the D3 input source 1 or 2 , and use the camera the video . That is what I did in mine . I also have a video selector switcher so I can can the video source on the fly . I pull a 30 foot car hauler and use the switcher to change cameras . I have one as my normal back up camera , I have a camera on the back of the trailer , one facing the fifth wheel , it makes hooking the trailer a snap , and the forth m