[Fot] Horn resistance

[Dave Connitt]

Does anyone know what I should expect to get as the coil resistance on a TR4A horn?
One of my winter projects is to figure out why I am blowing the 20 amp horn fuse. My horns measured 0.8 ohms and if I use 13.8VDC as my battery voltage, I get 17.25 amps at the 20 amp fuse. I should say that I have a Advanced AutoWire harness in tha car.
Thanks,
Dave Connitt 

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