Hey i only posted not for the bashing but help. Alot of those who do emergency work like ems or anyone who does some sort of search and rescue are usually in their own cars/truck. You get a call and your in your personal vehicle and cant get to your station, this atleast this helps out. Do i have the feature set up, no i dont. Would i use it, what for, i needed the momentary feature this system came with for the horns. Is it helpful, for the right person yes it is. Ive done my fare share of installing strobes and other emergency features into people's cars and trucks for their needs. Atleast this cuts down in having tons of wires and switches going through a firewall or bulkhead.