Dashboard lights and gauges not working! HELP!

It started out when I went to the store and noticed my key fob didnt work, after getting home my dashlights and gauges stopped working everything on my dash (including my mileage and prnd) is all blank nothing is working! I also dont have wipers, no high beams, no running lights, obd scan is not working and I can not lock my doors manually. My husband has changed the instrument cluster, replaced fuses and the entire fuse box, hes checked wires in the driver door and even replaced the battery in the key fob. We are at a lose as to what to do next!