I've got a Flaming River rack and pinion cradle/steering column in my 1966 Mustang. It's also got a Painless Performance wiring harness in it. Flaming river provided a horn relay with the kit, but the instructions are for hookup with the original wiring. I'm having trouble figuring out how to wire it up to the painless harness. It also mentions a "jump wire connection" between 2 of the terminals on the horn relay. Anybody got any experience with this?