I'd been looking through the threads about replacing the golf cart horn in the current generations of Priuses, when I recalled that I had this horn set in my basement--I'd bought it for my 2102 Prius but never got around to installing it. It's this: https://www.amazon.com/dp/B00BODVOSY Would this work at all? I know I would need a harness in order to add both; the horn has the Toyota plug. If it's possible to use it, where could I buy just the harness and the mounting hardware? It has the bracket but I'd need a second bolt. Anything else?