Just finished installing 4 horns. 1 pair Lexus Gx460 And 1 pair Land Cruiser horn. Bought them from eBay all 2 pairs for $70 I custom the sound too so I have 3 short bopbop before it go straight boooooooop. Reason for that so when I press the horn for 1 secs it will do just 2 bop sound to alert driver to stop looking their phone and the traffic light turns green already.