I have a 1928 Tudor (motor number shows the vehicle to be September of 1928)which has had its' electrical system "modified." It is still a 6 volt system, but there are a few extra wires along with at least one grounding problem. Some of the wires do not appear to correspond to any schematic I've found, and some are just hanging covered with tape. When the lights are on dim, the ammeter shows a major discharge. Was the 28 A wired the same as later versions, or do I need a schematic specifically for the 28? I would also like to know if all Tudors had Dome Lights, since mine does not have on that I've been able to find, but the schematic (in an owners manual for a 1931 A) I have shows one. If I do need a different schematic, where should I start looking? Any information you can give me is appreciated.