My '98 GS 300 is a beautiful car. Its just that the battery dies overnight. Took it to the agents who confirmed that there is a parasitic drain. They said it could be something aftermarket fitted on the car that is causing the drain. I did some digging around and found that the drain stops when I remove the ECU-B-2 fuse located in the Fuse Box in the Engine Compartment. What systems run via the ECU-B-2 fuse?