SLM#12

can anyone help me with getting DVD to my unit which has navigation featues but no"DVD" on the unit on 06 GS300 I had my audio guy do the bypass with the wiring and i have navigation and bluetooth while driving. I thought that i would get DVD until i saw a pic that had the Levingston player that said "DVD" etc... written on the unit. I have all the above without the DVD logo on it. Is there a way that I can connect a sepaate DVD player somewhere and wire it to the unit? I am trying to avoid an aftermaket unit/dash kit. not to mention losing some of my functions. Maybe even use the same input wies that contol the back-up camera? If anyone has completed this task or knows how, any help would be appreciated.