I recieved my '95 c1500 from my grandpa and I would like to be able to tow if I need to and I'm not sure how reliable towing from the bumper is so I would like to use a hitch. My grandpa's truck didn't come with a hitch, ball, or anything. I did see some wiring that looked like the trailer wiring harness but I'm not sure if it is though. What parts do I need to install a hitch and be ready to tow?