I finally figured out what was the deal with my upper marker lights.
Since we have owned our 1986 345, the upper marker lights have not worked. There were no wires going to the ICC Blink switch. My manual shows a red wire feeding all the upper lights. It says that the wire comes from the head light switch, goes to the ICC Blink switch, then to the upper lights.
There is no red wire. There is a cheap assed crimp type splice on the BROWN wire about 3" from the head light switch. The brown wire is the power to the lower running lights. The second wire comming off of the splice is the power for the upper lights. The crimp splice was loose, not letting power go to my upper lights. But it never went to the ICC Blink switch! So, I just cut the wire, added connectors, and plugged them into the ICC switch.
YEA!!! I now have opperating upper marker lights, and I can blink them to say thank you in night time traffic.