Installation Note:
On-board air system (air tank and compressor) is required to operate - not included.
Connected directly to the battery relay.
If you have not connected the horn relay, may cause electrical problem.
It is recommended to use 20A-30A fuse.
Mounting angle downward.
Disconnect the ground cable first remove.
Be careful not to put too close to the chassis of the horn trumpet rattling noise reduction.
Connect the grounding cable to avoid spark.