Step on brakes, front lamps come on, any advice?

[INeedNewTires]

i have a similar problem. My passenger seat belt doesnt work, but i know it works... i replaced it and it was in the open position, when i turned on the key it went to the closed position and thats where it stays. I have an S13, 91. My radio will not work and the interior lights dont work. any idea where to look for a problem? im guessing the door switch but i checked and replaced it, no luck. also somethin to note, when i try to turn on the interior lights the 'door adjar' light on my dash comes on..... wierd huh? any help is greatly appreciated thanks guys