The PO converted to an alternator so I only have a (actually two) fuse boxes no control box. It made my life easier!
As I said beware of Lucas alternators. The WOSP alternator fitted by the PO failed. My first Lucas type again just stopped charging, the the second had such a vibration it shook the engine, exhaust, chassis and me! All in the bin but the Brise has been faultless. I just know I shouldn't have said that!
Others, I notice Clive has posted, can advise on dumping the control box.
Good luck, it must be a bit nippy in Aland?
Iain