First, did you make the mistake of wiring it into the headlight circuit? If so, wire it up with a totally separate circuit.
You need to chase down the wiring for those lights. They should be on there own line with a relay and fuse of their own..You could use a separate switch or the hi-low switch, or even a combination of the two..
You definitely don't want them wired in addition to the headlights, the current draw with all those lights on that circuit is excessive and will cause problems once wires start to overheat.