This outlines design changes to the newest version of PD that will be identical in the rear and front enclosure.
Additions/mods
Add GPIO out for Horn Low side FET control
Change silk to match for front/rear
Add fan control for DCDC and rear enclosure fans
add power rail (maybe) for fan on center console
make sure we have spare outputs
Pin identification with LED indication for front/rear (also updated silk)
shorted pin or FW feedback for which board is which (similar to solar sense)
Update to all microfits kinked pins
Josh Rong add other changes you have noted from before here