78 mgb headlight switch wiring question........

[MGB-SBC-Jimmy]

Can someone decifer the three wires on the original headlight switch? Three wires: Blue, Brown, and Red (with green stripe).
I assume one would be power coming into the switch while another one would be for tail and parking, while the last one would be to send power to the headlights, but which is which? Thanks very much for any and all input!!

[BlownMGB-V8]

Brown would be unswitched power, Blue is headlight wiring and would go to the dimmer switch, and red would be for parking lights and would feed the fuses for the marker lights, if memory serves.

JB

[MGB-SBC-Jimmy]

Thank you, thank you, thank you!!!