I have a 95 SSEi and while I was driving last night the radio suddenly turned off as well as my ECC, and the LCD Driver Info on my dashboard (including the compass on the left side). My boost gauge and the oil temp gauge doesn't seem to be working either.

The ECC seems to still have power. It just won't turn on it has the double dashes like when you reset a clock or something, but nothing else.

Any ideas on what could've happened?

Sounds like you might have either a ground issue or your gauge cluster is going South.

Kevin, I don't see how the instrument cluster ties in with the ECC and radio. I'm leaning towards a possible bad ground myself. And for the life of me, I can't seem to remember where the dash grounds are at. I'll have to get my FSM'* out and look them up.