[moderator, this thread is cross-posted in tech help]

I drove the SD on Monday and everything was fine. I tried to start it on Wednesday and the battery was flat. No remote keyless entry, no dome lights, nothing. I hooked up a fresh battery but before hooking up the ground cable I checked current draw - 3.25 amps! I pulled all the fuses in the engine bay fuse box, trunk fuse box and disconnected the glow relay - still 3.25 amps. I'm thinking of tracing the power cable, then pulling each of the ECUs. Does anyone have guidance on how to proceed?

Thanks,
Sixto
93 300SD