Hey tgreening... I did a search for Whelen 97 and this thread came up, but in the 87 (!) pages I didn't spot it. Do you have the 97-series single-screw lights on your rig?
I'd be happy to answer except I don't what the heck a 97 series single-screw light is.
It shouldn't be too many pages back from here I took a picture of the back of a light. That might help you. I can tell you that none of the emergency/area lights mounted up high on the module had plugs. They were all big bulbs with screw terminals on the back.