Have no idea what products fit your vehicles ?Click car models as below to find right products :[xlmodel]-[photo]-[0000]a.Snaildownor45degreeAngleinstallation,Preventwaterintocoileddirectlyb.Ifyouarenotspecialpeason,don'tchangetheangledegreeofSteelSupport,oritwillchangetheOriginalairgap.c. MountingtorqueofSteelsupportisbetween6Nmto11Nm.d.ThehornsupportshouldbemountedtoSolidsurfacetoavoidresonance.e.Inordertoavoidcontactwithotherpartsofthecar,ThehornshouldbeconnectedwithhornsupportandinstalledtowideandVentilatedplace.f.Nonpolarityrequirementsforthisproduct,theconnectedplaceofthewireshouldsolidenough,Doublehornshouldinstalledonsolidpartofcarbodyinparallelway.g.KeepawayfromcarmotorandmuchRadiationplace.Notbetoolowmounting.h.Don'tkeepthehornonfor60seconds,oritwillleadtothecoilburneddown.i.Usingcopperwire,morethan1.5mmforwireDiameter,thewirelengthshouldlethan4m.j.StandardmountingVoltage,inputworkingcurrentmorethan30A,12Vhornvoltage:9-14.5VInstallation and Maintenance01 Installation1.Parallel Installation2.install relays as for as poible,protect steering wheel stwitch3.Copper cnductor wire dismeter is greater than 1.5mm4.After the horn is fixed,make sure not to contact with other parts5.Away from the heating source installation6.The sound of a basin horn is straight line,and the horn direction should be noticed7.Snail horn under the oblique 45 installation,can effectively prevent water.8.Mechanical horn has no positive or negative differenceelectronic horn should pay attention to positive and negative polarity can not be reversed02 Common Sense1.Keep the horn outside clean wiring securely2.Check the fastening screws regularly3.When washing the car,prevent the flow of direct horn position4.Do not hold the horn for a long time to avoid oxdation of the contact pointWe maintain high standards of excellence and strive for customer satisfaction Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.