89AUDI200

Driving home last night the EDO read out on the dash started to give weird indications first the temp signal, then the Alternator signal then the low fuel signal then it was just a continous beep. I pulled over and set there for a minute with the beep going on. I turned it off waited a second and started it up. no problem runs great. BUT no EDO indication of anything. The dome light no longer works, the interior lights do not come on when the doors are opened and the radio does not power up. This is a 1989 200 QT. Any idea what's up? I need to check some fuses after work today but what the heck caused this?