[wamerrell]

Has anyone installed one of these on their Chief? If so, any issues or hurdles?

Dual Track — Loud Dual Tone Motorcycle Horn

Dual Track MotoHorn™ is designed as a true 500 & 400 Hz dual tone motorcycle horn system. It's universal design allows easy installation on all motorcycles.

motohorn.com

I have those plus the air horn on my Springfield. I am very happy with them. I used the upgraded wire and relay provided in the kit. Been since June and so far no trouble.

 

[wamerrell]

Did you keep the stock horn? I added the airhorn, and removed the stock one and placed my compressor there...now I'm having computer faults with the current being low or open. works for a few bursts and throws the error code.

I did not keep the stock horn.
I did use the provided relay and upgraded wire. So far no issues.

 

[wamerrell]

I'm wondering if the dual horn is pulling the right amount of current? Did you install both at the same time? Seems like those that intsalled just the airhorn are having issues...

I installed the air horn first and had it alone for a couple of weeks. Then added the duals.
Did you use the larger gauge wiring?

 

[wamerrell]

I wonder if they upgraded the computer system and diagnostics from 18 to 19? Yes, 12g to the 30A 5-pin relay and compressor. Pretty sure my issue is the original horn wires going to the relay. My dealership said good luck, the bikes computer monitors everything, making it difficult to modify stuff. The only thing I have not done yet was put a 30a fuse inline, but that shouldn't affect the low voltage side, would it?

I don’t think a fuse would make a difference. I suspect the stock wiring going to the relay also.