Today I installed a horn cut off switch. I had got a well used wireless corvette mild to wild exhaust switch from forum member mountainears and tinkered with pairing the fob with my homelink buttons, but it required two homelink buttons, one button for on and one for off. I only had one homelink button left that was not already being used. I could have replaced the controller with a single latching one, but I had an extra unused manual switch already installed in my dash. So I removed and used the switched fuse pigtail from the corvette mild to wild, plugged it into fuse location #42(horn), and hard wired it through the firewall to my unused in dash switch. Very KISS solution. When I am hunting, running from gate to gate, or in and out at the boat ramp, etc. I can just hit the switch and kill the horn until I am done. If I find I am not remembering to turn it back on, I may look for a "delay on" relay to wire inline so it automatically turns back on by itself after a set amount of time.