1950s Heater and A/C rheostat 1957 Cadillac

[houseboats1]

Hello and thanks in advance. I have a 57 Biarritz in Australia and the car was converted to right hand drive in the late 1950s, so the wiring has seen better days. I am rewiring the under dash and engine bay with modern good quality fuse and relay panel all hidden under the dash. I want to add relays to my heater and AC blowers and not sure how to do it keeping the resisters and rheostat control switches, just wondering if anyone has done this before. Thank you.

[59-in-pieces]

Mark,

Your car is a sister to mine - Starlight iridescent (Poly) - black top and black interior.
Mine is left-hand drive.

Your work area is fantastic.

Looking forward to following your efforts.
Keep the pics and commentary coming.

Have fun,
Steve B.