This is Sick!

 

Any ideal for a backup camera on this setup? My buddy wants to do one after I told him about your setup. He has alot of trouble turning around to see behind him due to a bad car wreck. So a backup camera would be a nice option. It seems like the bluetooth option is not very fast or very good. Seen some point to a wifi option, but have not found anything that is not "still in devolpement".