Bringing a 56 dodge pickup from the weedline to the road. I have the original (?)turn signal switch. It has 7 wires. One leads to a bulb mounted inside the housing. The other 6 have the cloth braid covering the copper wire. For the most part, all the wire covering colors look similar due to sun fade. The arm moves freely so I would like to use it. So... as it is mounted on the left side of the steering column, top to bottom, excluding the bulb wire inside the housing, what does the top wire control? The next one down and down the line? Thanks.