Information Center '91 Caravan LE

I have a 91 Caravan LE and one day last week the information center located above the windshield center just went dead, does not come on. There are no fuses in the fuse panel associated with this information center. Has anyone any idea as to what the problem may be and what my next steps would be in troubleshooting this problem.
Thanks.

Just wondering where all the automotive technicians are at?, seems no one can help with this matter of no power to the information center. Guess I will have to just tear into it and manually trace the wiring and see if I can find out where I am loosing power. If someone could supply wiring information on this ciruit it would be a great help.