I got the horn wired in today temporary ( no selector switch for the horns yet, just the Ahoogah ).. I thought the horn was a little worn out cause I couldn't get it to sound right ( adjusting the screw on the back ).. but I was testing with the engine off.. I had gotten it to sound as good as I could get it and figured it was as good as I was going to get it.. after restarting the engine to put the car back in the garage, I tried the horn again and it sounded perfect