Dear bobbybuick and mid-60s Buick caregivers,
I think the tail light is a different circuit and a different fuse .
Yes, I believe you are correct, but these bulbs aren't using a lot of power. Supplying 4 bulbs on the same circuit instead of 2 I don't think represents an issue.
it works,.changing parking lights to led sylvania Zevo next .that way very low amperage will flow through diode
Yes, using a diode will also work. Switching to LED lights would reduce the current draw for either using a diode or changing to the taillight circuit. However, you probably will need to switch to an electronic instead of the factory mechanical flasher for the turning signals.
Thanks for sharing your solution!
Cheers, Edouard