5 YEAR OLD 50 HP MERCURY OUT BOARD. WIREING HARNESS MAIN PLUG, ON THE STARTER SIDE OF OUT BOARD. NOT WONTING TO STAY TIGHT IN HOLDER.YOU SOME TIMES HAVE TO TOUCH THE CONNECTION TO GET THE KEY TO START THE MOTOR AND THEN IT RUNS GOOD THEN TIMES A BUZZER COMES ON STEADY TOUCH THE PLUG AND IT...