My 2013 Palazzo is like yours. The one port I saw was in the back above the radiator. I did not look for the one up front. Mine is in storage at this time. I have checked all the documentation I have and nothing that mentions the data ports or their locations. I now need to locate it as well so I know. I know where almost everything is, but I forgot to look for that port. I hope you have a mirror and flashlight. That would be my first move barring someone posting it here.
2013 Thor Palazzo 33.2
2013 Honda CRV