Why won't my truck start

My 93 4 runner 5 speed everything on the dash clicked off while I was driving the only gauge that worked was the gas gauge the head lights stayed on everything else was out the heater radio lighter everything I shut it off when I tried to start it nothing put a brand new battery in nothing the door locks wouldn't even work but the light over the back seats that works I just replaced the alternator the same day I checked the fuses not them I don't no I need help HELP