Manufactured an aluminum plate to stiffen the instrument panel base for the usb/aux connecters as well as RS232 engine diagnostic connectors. Cut holes in the side of the instrument panel base for the RS232 connectors and installed them with the supplied screws. The wires for the RS232 port already had the connector pins crimped on them so I looked up the correct pin numbers for each wire in the Engine manual and Pipistrel wiring schematic. Inserted the pins into the connectors.