Stripped the interior and found that right behind the fuse box is completely rusted out... At first I got annoyed about having to pull all the wires but then I thought there
BMW E20 E21 E30 E31 - 1 + 3 Series Fuse Box 61149224879 9224879 | eBay
BMW. Model E30. Fuse box set. Original style. Used item. Made in Germany., Auto Accessories on Carousell
1983-1991 BMW E30 3-Series E24 Under Hood Electrical Fuse Box with Wiring OEM - 34891 - Prussian Motors