68 500 Taillight Stays On.

Hello,
I have a 68 500 and the only way I can get the taillight to turn of is to remove the fuse. Brake light works good, just the taillight stays on. Also, my horn beeps intermittently, so I disconnected it and the bike won't start. Hook the horn up and it fires right up and runs great. I have installed a new ignition switch, but the taillight stayed on with the old and the new switch. I do have the original dip switch, but not sure if that's the issue. The dip switch is missing the bezel to hold it in, maybe it's grounding out.

Thanks in advance