Armed with the basic knowledge gleened from Xenon Expert's guide found on the Mazda 3 Forums, I decided to tackle this modification. It allows the foglights to be used whenever you want, independent of parking lamps, low, or high beams. Foglights can now be used with high beams. Useful on dark country roads.
note: There are minor changes to the guide when modding the 5. If anyone is interested I'll follow with a short overview.
pics: The second pic is highbeams+foglights.