Re: Battery Drain on new build
Keep the light hooked up and unplug every device one at a time and check glow.
When everything is unplugged, disconnect the red wire going into the firewall and check.
If it is still glowing, check/remove the positive pigtail junction block from the rad support next to the battery. Sometimes there is rust build-up between the stud and support - high resistance - very low current drawn.
If bulb goes out, then a dash harness problem. Red wire inside feeds two devices - ign sw & head light switch and fuse panel for convenience circuits - courtesy lights, glove box light, trunk light, cig lighter, any device you can think, disconnect it.
Once the light is out from the last circuit, reconnect the last circuit, disconnect both battery cables and measure the resistance across both cables - it will be a high resistance, >100K ohms meaning microamps of current drawn, a low glow.
Good luck, may the force be with you...........
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