Dipped lights to come on with full beam

[geraintthomas]

I've just installed bi-xenon projectors, they have a shield that lowers to flick the light up when you use the high beam.

Works a charm. Thing is, if your dipped beams aren't already on, then flashing the high beams doesn't do anything as the dipped beams don't turn on.

How can I make the dipped beams come on with the high beams?

Thanks!