...
- Find Lower Resistance Fuse (Voltage Drops in Power Path Selection)
Ideally with a smaller package size as well (the fuse could be old therefore having higher resistance?)
MINI 297 (ATM)
Fuse Holder: Keystone Electronics 3568 - Digikey Link
Fuses: LittleFuse Mini 297, or Cooper Bussmann ATM - Digikey Link
MICRO (ATR)
Fuse Holder: I can’t seem to find any dedicated ones, but the Keystone contacts for the Mini series (without the cover) should work but is not as elegant.
Fuses: LittleFuse Micro2 327 or Cooper Bussmann ATR - Digikey Link - Use only 2 parallel FETs for the power selection inputs (Power Path FETs Power Dissipation and Temp Rise)
- Find connector to replace screw terminal for easier assembly (not high priority)
- Add current sense to power supply input (instead of 0 ohm resistor)
Unless there was a good reason it was not there to start - Aux Switch Implementation (to completely turn off the car)
...