electrical

My truck wouldn't start yesterday. Got a new battery installed, alternator is charging well. I had starting trouble with the new battery this morning, and don't know what to do to find the drain. Any suggestions? Nothing is plugged into the chargers/cigar lighter. All lights are off...

PDC/FCM problems...maybe Hi everyone. I just bought a 05 QC two week ago and inherited a electrical problem. Randomly when turing the truck on, the speedo, radio, power windows, ect wont work. The ABS and Brake light stays illuminated during the issue. After a 2-10 minute delay everything...