Box has now some rear legs to permit to do not install it vertically on the fans.

The bottom has been replaced by a CNC milled aluminium plate, which acts as a heatsink for the Pi4, which is now upside down, with thermal contact of the chip to the aluminium plate, by the mean of an aluminium block.

The DC connectors area on the left is now with an aluminium plate, which permits to adapt only the plate to different types of connectors (in standard XT60, but can be adapted to Anderson Powerpole as well or others).

External DC connectors are reduced to only one connector, which acts as a DC in PSU, charging port for battery back. new wiring diagram for the setup, which is simpler.

USB GPS dongle has been tested to work well on V1, even it's installed inside the box. The signal is still well received by the dongle, so it's not planned to change.

Better hole for disconnecting the microphone plug, to be able to put the thumb to release.