Thanks for the response Fluke.
To be honest, I don't trust the controller to dim the lights after 20 secs. One day it goes faulty and I return to a bike with a dead battery
I currently I have fuzeblock fitted to the bike. It's wired directly to the battery and provides switched power or permanent power to devices connected to it.
So what I'm going try is:
1. Connect the controller wires to the fuzeblock switched power as well as the brown and blue wires. This should mean that when the bike is switched on, the Cree LEDs come on at that point
2. Add a three way switch so in position one the full Cree are on, and in position three, an additional signal is sent to the white wire from the switched ignition accessory lead (or fuzeblock)
3. Connect the red wire to a three way switch. When in position one (on), the full Cree lights are on, with no voltage going to the white wire
4. Connect the white to the three way switch. When in position three (on), a feed is sent to the white wire. The source of this feed is switched power provided by the fuzeblock. As the Cree lights will be switched off when the bike ignition is switched off, the dimmer affecting the auto off function doesn't come into play
At least I hope the theory is correct