BMW 3-Series (E90 E92) Forum - View Single Post

son_of_siggy · 10-09-2012, 06:20 PM

Use the relay. He probably ran the trigger wire to actually power the horns, rather than running a dedicated 12v to the relay, and using the horn trigger wire to activate the relay.

10-09-2012, 06:20 PM	#5
son_of_siggy Lieutenant 15 Rep 432 Posts Drives: CTS-V Join Date: Jul 2011 Location: United States iTrader: (0)	Use the relay. He probably ran the trigger wire to actually power the horns, rather than running a dedicated 12v to the relay, and using the horn trigger wire to activate the relay.
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