E70 Single rear entertainment system help
 

Hi team,I,m new to the group I have purchase a 2011 E70 and brought a used rear entertainment system but one problem how do i connect it to the car has someone out here done this.i have two ligheter ports on the new face but only have one hook up also where does the dvd connect for power . if someone knoe the parts nu,mbers for cables or no where to go please advise thanks again