OK so I just got a 2005 Mazda tribute and am putting a tow hitch on it the I was looking for the wire harness hook up and could not find the one the matches what I think is the connector tucked under rear bumper by the way it is rectangular with the green yellow brown and black wires. I followed the wire set back to the driver side rear tail light wires coming out of body am i correct in seeing this which was not connected to anything is the 4 plug wire connection and where do I find the correct adapter.

 

Read this. It is for a RHD vehicle in Australia.