I HAVE AN INTEMITTENT PROBLEM WITH THE DOWN TRIM UP WRKS FINE. I REPLACED THE DN SOLENOID AS THE "HOT" POST WAS LOOSE IN THE SOLENOID.THE SOLENOID WOULD CLICK THOUGH. PROBLEM STILL EXISTS WITH THE NEW SOLENOID. ALL CONNECTIONS/GROUND SEEM SOLID. I AM SUSPECTING THE TOGGLE SWITCH AT THE THROTTLE/SHIFT CONTROL.I'M NOT SURE WHICH CONTROL MODEL IT IS, NOT A SIDE MOUNT. IT HAS THE TRIM/TILT TOGGLE ON THE VERY TOP OF THE LEVER. IS THIS REPLACEABLE? HOW CAN I TEST IT FOR SURE? WHERE CAN I GET ONE, CANT FIND IT AT MERCURY EXPRESS PARTS.