What’s behind “Safeties in the No. 7 Electrical Control Panel”

Hello Forum, with my V70I EZ 1998, 2,5L Automatik,144PS the following problem has occurred for some time. After longer service life (about 1 week) the battery is completely vacuumed. We have found that it pulls a small amount of current without ignition…. Weekend service life is no problem….with one week it becomes problematic. Battery is new. During after-measurement today I realized that the current flow can be almost completely stopped when the fuse 7 is removed from the main safety box (Box A). According to the manual the fuse is called ” fuses in the electrical control center”. All other fuses or the achievable relays had no influence. Can someone tell me exactly what this affected fuse is? Would I be pleased about an info. Thank you 🙂 Greetings from Dortmund Stefan