Is the power wire grounded on the chassis?
As such, the entire circuit inside of the originalhorn has to be isolated from the case so it is not grounded on the chassis of the car. Some aftermarket horns have only one wire. These are normally expected to be grounded on the chassis, in which case the power wire wants to be switched by the horn button.
How do you connect power wire to relay coil?
Connect the original power wire to one terminal of the relay trigger coil. Connect the original horn button wire to the other terminal of the relay coil. Then pressing the horn button makes the ground connection to activate the relay.
What happens when you eliminate the return wire?
Eliminating the electrical resistance of the small return wire in the power circuit may actually result in slightly improved voltage and power to the horn. That could be significant if the new horn draws more power than the original horn.
What happens to the brown wire in the harness?
The original brown/green wire in the harness still carries power to the horn, but the original brown/black wire in the harness is then only switching the relay signal current. Eliminating the electrical resistance of the small return wire in the power circuit may actually result in slightly improved voltage and power to the horn.
How to wire an aftermarket power antenna into the factory?
Plug in your new antenna and give it a whirl. PS – I looked at the wiring diagrams for each year 87-92 and they all appeared to have the same hookup to the original power antenna so this should be able to be applied to all years.
Where is the power wire on an aftermarket horn?
As such, the entire circuit inside of the original horn has to be isolated from the case so it is not grounded on the chassis of the car. Some aftermarket horns have only one wire. These are normally expected to be grounded on the chassis, in which case the power wire wants to be switched by the horn button.
Connect the original power wire to one terminal of the relay trigger coil. Connect the original horn button wire to the other terminal of the relay coil. Then pressing the horn button makes the ground connection to activate the relay.
The original brown/green wire in the harness still carries power to the horn, but the original brown/black wire in the harness is then only switching the relay signal current. Eliminating the electrical resistance of the small return wire in the power circuit may actually result in slightly improved voltage and power to the horn.