You're welcome. If it does need the extra relay, that's not something that is already ON the tractor, you would have to add it! I think John Deere offers one, but you can use just about any heavy duty 12volt relay or solenoid. Older Ford cars and trucks used them, so they are easy to find. If the "tapping" doesn't work, then you might have a more common issue such as a bad/weak battery, bad/loose/corroded wiring somewhere, solenoid sticking or dirty contacts inside it, among a few things.