2004 X5 Battery Drain Issue


I have a 2004 X5 3.0, 150,000 miles.

The battery was going dead when the car would sit for a while. A new battery was installed. After that, the car could sit for 2 weeks before the battery would be dead and the car would not start.

Now, not long later, the car only needs to sit overnight for the battery to be drained and the car will not start.

One repair shop found some issue with the radio so I pulled the fuse for the radio, but the problem continues.

I suspect it may be an issue with the alarm system maybe. Where is that fuse?

And has anyone had a similar issue on this generation X5?

Thanks for the help!