No Dash Lights or Tachometer
 

I'm at a loss... Just bought an 05 MCS with 97K and the car works great with the exception of the Rear Brake lights staying on when i turn the car off. I have NO dash lights and Nothing on the tach works, no rev counter, turn signals, CEL, etc.... The speedo works fine. Any ideas??

I would check the fuses and relays. That or your whole wiring harness is fried.