How do you replace the oil pressure switch for 1995 Mazda MX6?

Hi there , I have just changed the pressure sensor switch on my MX6 , it is located fairly centrally on the engine facing the radiator.There is a small wire that is routed across the alternator so it can be found by tracing that .I had to change the alternator and broke this by accident , you might have to remove the alternator to get to it first depending on the size of your hands and arms ,Mazda has the replacement parts and can be bought for a few pounds .Hope its helpful !!