I want to just rig up some + and - wires to the standard cigarette insert (male) piece and wire those to the ciruit for the autodimmer.

Which part of the Radar Dectector plug is power and whoch part is ground????

Looks like there are 3 connections on this thing. 2 on the sides (very similar looking) and one on the tip. If anyone has any info on this, i would appreciate it.

according to "my" interpretation of this wiring diagram in the STI Service Manual (see this link for diagram http://206.13.93.15/STi_Stuff/STi_Manual refer to -> section 7. Wiring -> 19. Front Accessory Power Supply System.pdf ) the tip is for the power and the sides are for the ground. Please let me know if I am wrong