Thanks Randy, Yes I was referring to the VW switch,but I picked up a NAPA ECHLIN SL159 switch that is supposed to be a replica of the OEM Packard switch and it works just like the VW. Sounds like you have one of the oem's or at least one of the same design. Do you know who manufactured yours. I didn't intend to imply the service manual is incorrect, just unclear since fgure 96,p-63 shows purple going to the middle term while on page 65, fig 97 purple appears to go to a different term and lt. grn seems to be the center term. However I do realize neither dwg is intended to be used to determine circuit logic and is actually a wire id dwg. I only wanted to help the next guy, who like me is new to Packard cars and may find like me,that information like how a oem switch actually works may take a while. I like your saying about "Theory Vs Practice", I find it to be true everyday.