on my drive home I had some smell from under the dash I pulled over and checked everything, found the tail light fuse blown and the harness steering colum connector hot. I got the car home and started searching for a possible ground, disconnected the neg bat cable and put a test light in the neg side the test light came on, I started diconnecting plugs until the light went out but its not being consistent first the light went out when I disonnected the flat harness I plugged everything back in to go thru it again only this time when I disconnected the headlight switch it went out, there is a black/orange wire that goes to both of those switches I am thinking that is grounding some do you think I am on the right track here? when I pull the tail lamp fuse the light goes out.