Jet Inoue Genuine Horn Connector 505287 Opened but not used. This is a wiring connector that allows you to sound an aftermarket horn using the original horn button. You can easily get power simply by plugging it into the original connector, making it easy to revert to the original horn during vehicle inspections, etc. Compatible vehicles: Isuzu Five Star Giga (H27.11～) Isuzu 07 Forward (H19.7～R5.2) Isuzu 320 Forward (H6.2～H19.6) Fuso 17 Super Great (H29.5～R5.9) Fuso NEW Super Great (H19.4～H22.3) Fuso Best One Fighter (H17.1～H21.8) ○ Ships on weekends. Please understand this before purchasing. All packaging materials are reused (e.g., Amazon boxes), so please understand.