Hi all. This is my first Jeep and my first post here. I bought myself a '93 xj a few weeks ago and discovered the horn didn't work. Having now investigated, it seems like something is missing from the mechanical arrangement in the steering wheel contact. If i ground the contact at the bottom of the hole, the horn sounds. Can someone tell me what the missing part is from the picture? The first one is just the centre cover removed, then the top part removed to show the spring plate, then the spring plate removed to show the empty hole with the 12v contact at the bottom. I'm guessing it might be a spring?? Thanks!!