@Music_Swift
you do not need relay as honda has already got 2 horns.
if car has only 1 horn and customer wants to upgrade to 2 horns
or car has 2 horns and customer wants to change it to 1 horn, then relay is required to control its power supply
I'm using Bosch Symphony horns
I have installed garware ice cool heat protection film on my front wind shield.
I have not installed any sun heat blocking films on side glasses
police is now days very strict about sun films. they don't allow us to use sun film..
you do not need relay as honda has already got 2 horns.
if car has only 1 horn and customer wants to upgrade to 2 horns
or car has 2 horns and customer wants to change it to 1 horn, then relay is required to control its power supply
I'm using Bosch Symphony horns
I have installed garware ice cool heat protection film on my front wind shield.
I have not installed any sun heat blocking films on side glasses
police is now days very strict about sun films. they don't allow us to use sun film..