My question is on the horn relay, specifically the orange thick wire comes out of the inside dash wiring harness out through the dash panel and up to the horn relay. On my 69 Fbird with manual brakes, the orange wire comes out trough a hole adjacent to the master cylinder. On my 69 TA with power brakes, the hole is not existant. Where does this wire route out from inside to the horn relay on power assisted brakes? The lower 3/4 inch hole where the plastic plug goes is not the answer as the lead is too short and does not fit through that hole. Any help is appreciated and thanks in advance, Steve