Yes, I am having the internal debate about "would this make sense to do" but I would rather make a decision before I wire the light than after.

My understanding is that the wire harness I am installing is set up for a more modern vehicle with the door switch and headlight switch providing 2 options to provide the ground to complete the circuit for the light to come on. The light has power provided to it all the time (just like standard). There are two wires designated for the "dome" light, one that would provide power and the other that would provide the ground path. The headlight switch came with the harness. I would need to detemrine how the harness intends for the door switch to be wired but my preliminary read indicates that the harness intends the installer to have these two options (door or headlight switch). The harness instructions are fairly good but there is not a wiring diagram per-say so it is not clear to me how the headlight switch and door switch are intended to work in parrallel othe rthan the headlight switch body does need to be grounded for the interior light feature to function (per the instructions).

I do not have a door switch unless I can "steal" one from my son's '88 Fiero parts car that I am storing.

If I do proceed I would want the light to come on when I open the driver's side door (not doing the passenger side), or when the headlight switch is rotated to the position where the interior light would illuminate. I would either eliminate or always leave on the original light switch that is part of the light assembly.

I am assuming that given that people are installing power windows, power locks, and all other forms of "modern" features that I would not be the first person to do this so I am trying to learn from others that have done this to decide if its what I want to do.

If I decide to forget about the door switch I will use the power feed wire and original switch on the lamp and leave the second wire out (probably trace it back and delete to avoid any problems).


1949/50 3600 Project
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