An Electrical Nightmare

Three ballast resisters?
The purpose of a ballast resister is to reduce the voltage (usually ignition), so if you somehow rout the feed through one ballast resister and into another......

I no expert but if the issue is a "low voltage" condition....and there's 3 voltage reducers in the mix.....I think that might be the place to start.

Best of luck on it. let us know how you make out