Resistors don't get too hot that they will melt everything especially the ones you have that look like gold bars. I would just wrap then in electrical tape to be lazy but it should be fine. You normally plug one end to positive and the other to ground. Tap into the black wire for ground and both positive wires are brown and numbered. Just tap into one of the brown wires. Turn on the signal and if it doesn't work properly then plug it in to the other wire. You won't blow anything.