I BOUGHT A HORN OFF "FLEA BAY" WHICH IS CALLED A STEBEL MAGNUM T-80 W/ 139DB 12V. WHEN I SWAPPED IT OUT W/ THE OEM I DIDN'T USE A RELAY LIKE THE DIRECTIONS SAID TO. I ASSUMED MY BIKE ALREADY HAD ONE. IS A RELAY NECESSARY FOR THIS HORN? IT SOUNDS DIFFERENT THAN WHAT THE WEBSITE GIVES ME @...
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