Not knowing the specs on the wireless or camera what you first need to establish is the impedance on both units because they will need to match. Also, look in the wireless unit's manual because what you're trying to do might be covered in there. If you don't have the manual or the information isn't there, call the manufacture of the wireless system. They will most likely be your best source for what needs to be done. In fact they might even have the cables/connectors already wired for what you need. At the very least they be able to direct you on where to purchase them.