Have memory lapse. I am converting my '52 from 6v to 12v. Discovered a black box whose purpose is unknown. Need help ID'ing it and purpose.
Please, one of you experts !!!!
OK. Box markings:
5157C3
Hella 12v
4rd
960388-06
15591178
Also has markings showing switches. Can't draw these on here.
Hella website no help. spent 45 min. looking.