Subject: 1999 Montero Sport
Question:

My Montero gradually lost power while riding down the road. First the radio went in and out. Next the SRS light came on and the car lights dimmed. Next the car had trouble running/ I parked the car and it wouldn't start again. What do you think?

Answer: Dana,
This typically happens when you alternator and battery begin to fail. Have a mechanic test your alternator and your battery and replace them as needed.
Good luck!