Here it is thanks to TXFIRE:
"What you need to do is take it apart and you will see a 3 hole AMP plug with 2 wires in it for the traffic director controls...I think a white/green & white/yellow maybe?? Anyways....take a wire and put a pin on it and plug it into that 3rd position, which should be blank...and run that to a power lead. I ran it to rear flash power, blue I think on the control harness...that way as soon as it is switched on, you're ready to go. And get ready for a WHOLE new set of patterns....and there is some nice ones."
And to scroll through the patterns just use the Scanlock wire. If you set this up right, you could actually be able to have the regular patterns for one mode of a pursuit switch and the "hidden" patterns for an overide mode.