Problem is I can't see an easy block connection point to split the loom. I could disconnect around a dozen connectors under the dash, but that seems a lot of work (and there's one I haven't found yet!). Or the rear wheel arch connector if I knew where it was - can't see it yet.
Beginning to think I might be easiest just to cut the loom in the rear footwell, where it has fewest wires, but don't really want to do that if there is a "proper" block connector somewhere.
Any clues appreciated.
Iain
) and mucking around with rear wheelarch inner panels (including a small metal one which unscrews to reval more solid wiring), I've disconnected all the front footwell connectors and a couple of screwed in earths. Did however have to cut 3 ( 
!!!) wires which are in part of the loom which disappears off to the right into the inaccessible heater/central console area. All wiring and connectors now pulled through the "tunnel" under the seat and ready for welding prep'n. Good outcome and good practice for my father's 1989 340GL which currently sits in the driveway (front end shot to bits under the radiator - job for the Spring).