just an FYI, DOC recommends splics connectors, but if you're in a pinch like I was, I had splice connectors but they were too small....very little slack to work with as well, I just inserted the bare end of the red wire into the back of the connector for the headlight switch, same difference..but no cutting wires and stuff...easy removal if needed. Just secure it well...my conscience was telling me to solder it but my trusty electrical tape did the job. For a ground, you can use anything metal pretty much. I tried using a steering column bolt, but wouldn't work...I found a black torx screw that I used. No problems...would have been 100x easier to find a good ground if I could get that stupid panel off under the dash...but that's another story.