Replace existing horn w/ ooga horn?
I have a 12 volt system and a Harbour Freight ooga horn. I want to replace my stock horn with the ooga horn. I have a GM column with a LeCarra wheel. I removed the old horn, and there is only one "connection" on it, which is a wire going to it labeled "HORN". The ooga horn has both a + and a - connection. So I connected the "HORN" wire to the + on the ooga, but it does not work. Do I need to add something else to the - connection? I have seen messages with relays and flip switches, bit I really just want to disconnect one horn and install the oooga so it works with the horn button. I am a newbie to this, can you help?