So, no one called me out on my response to the problem.
I simply do not know where to start, but I'll give it a shot anyway :
Replace the battery
Check the alternator
Check ALL fuses and replace any blown ones
Fuse locations : little box in front of battery, underhood fuse box, RCM module, headlight switch ( under panel at driver's end of dash ) and back of radio.
Check for any CEL codes.