Grand Prix Electrical issues

I have a gp with a little over 100k miles on it and now it won't start. At first i thought it was the battery, but it has been changed and it worked for about two days now not a single light comes on in the vehicle. It won't start and it appears that there is no electricity from the battery.:banghead:

You're going to have to recharge the battery, then have the charging system checked. Sounds like you have a bad alternator or something drawing power when the vehicle is off and it sets..