The thumb switch on the right joystick stopped working. The fuse (F8) is OK. In fact all the fuses are OK. I took apart the handle and looked for a broken wire and nothing appears to be. I noticed the rear button to idle the machine is also not working but the horn button is. I don't know when that stopped working but the wire for that button and the thumb rocker switch are all going to a small metal box which is silicon filled. I don't know what that is for ?. Anyways I guess I should up the cab and look elsewhere ? Any ideas anyone ? I could not find the part number on JD site.