I had to buy a new left switch to fix my issue with my headlight so I got a used one off ebay and it worked. But after hooking it up I noticed the horn didn't work. Disconnected/reconnected the two plugs and it worked. Well a short time afterwards I got new bars so I had to unplug/replug in the switch and now the horn doesn't work. Connected one of my old switches and it works. Is it an issue with the contact patch in the switch? How can I fix it without spending money on another switch?