Installed Hella Supertones on my '11 WRX without removing grill or bumper
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01-12-2011, 04:22 PM
05 LGT Wgn
Lol at buying a harness because the stock voltage to the horns is 12v's so there is no need to install the relay. Just ground the horns and extend the stock horn wire to the hellas.
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