Dash lights and tail lights wont come on, please help
 

Was driving home today, my dash lights were out, didnt think anything of it figured blew a light, but i got pulled over for no tail lights, so I noticed that both dash lights and tail lights are off when i turn the lights on at night, brake lights work, also when I use the key FOB the dash lights turn on to indicate lock and unlock as do tail lights. Anyways, need to get this fixed as this is my everyday and fishing truck lol. Recently I installed the keyless entry system, it will trigger dash lights for lock, unlock and panic, the tail lights are also triggered, but when i turn on the lights at night neither work, 2nd I replaced the rear window module to get the rear window to go up and down again. So, what can I check tomorrow? fuse? ground? any and all info will be greatly appreciated, as I do need to get this taken care of ASAP. Thanks in advance for ur help!