So I bought this horn last year and hooked it up because my stock horns were so quiet. They say that this horn is supposed to be 2 times as loud as conventional horns. So What I did was I bought one of these horns and I just spliced into one of the horn wires and hooked it up. So now when I press the horn, there are 3 horns that are going off at the same time. Is this the reason I am not getting the same output as I should? Should I remove the 2 stock ones and just leave this one? Thanks

[ul][*]Big rig sound - twice as loud as conventional horns![*]Excellent for OEM replacement or supplemental use[*]Rugged steel housing and plastic projector construction[*]Copper wire coil motor[*]Corrosion-resistant finish[*]1 or 2 terminal[*]130 decibels[*]Uses 12V power source[*]Instructions included for easy installation[/ul]