...

Step 2: Spec LED driver, take a look here https://www.digikey.ca/en/products/filter/power-management-pmic/led-drivers/745 - note that “linear” drivers regulators are just fancy resistors, so these they will not solve the heat issue. Don’t get ones that requires microcontrollers

Step 3: Implement LED driver in new light schematic. This is only really needed for the daytime running lights, so only focus on the “tub” lights. This is because the other lights, ex. turn signals, are not on for enough time for heat to be an issue.

Notes

Current:

White: 31.5 mA

Red: 81 mA

(should be able to support 80 for both, then just dim them if not)

Linear Regulator:

https://www.digikey.ca/en/products/detail/infineon-technologies/BCR430UXTSA2/13541277

Switch Regulator:

https://www.digikey.ca/en/products/detail/texas-instruments/TPS92200D1RXLR/18159708