Custom Radar Detector... no idea how to use it

[kerplunk]

Hey guys

I just got my 986. They said it has a "$2500 custom radar detector" built in. Here are two pictures of it:

http://www.kerplunk.net/radar1.jpg (Knob that can be turned left, middle, right.)

Left = red/orange
Middle = off
Right = green

http://www.kerplunk.net/radar2.jpg This is where the lights are (no buttons or anything).

So I have no idea what the colors mean. I'd assume red/orange was in town driving and green was highway? I don't know. Has anyone seen this before? I am not really an "under the hood" kind of guy, so I don't want to take a peek at the actual unit, but if I have to then I will if no one knows.

Thanks!