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Horn (w/Relay) upgrade, where to tap into for constant 12V power

487 Views 7 Replies 3 Participants Last post by  Sienna.Guy, 
Sienna.Guy
I'm looking into upgrading the stock horns. Is anyone familiar with where I can cleanly tap the relay into for the 12volt power?

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Sienna.Guy
pwd847 said:
I normally tap my power off of the battery.

Alternatively, you could amp clamp the current horn wires and see if they carry enough current.
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About how much current is enough off the steering wheel switch?

Regarding tapping off the batt, easier said than done. G4’s battery is in the rear starboard side. Anyhow, I’d rather tap into the fuse box.
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Sienna.Guy
Poking around the front fuse panel box, I found several unused hots to tap into. Challenge now is how to run it out without cutting.

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Sienna.Guy
Stock switch outputting 2.6amps. I measured one horn, it’s 2.3ohms. Therefore in parallel, it should be approx 1.15 ohms, assuming the other is the same
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