Dennis,
OK, let's start over again. The donor crashed car was damaged in the area of the starter so I had to do some cut-out to retrieve all the electrical harness, etc. It was difficult to keep track of all the connections
Here is the wiring schematic from the donor as I can best figure out from the different connections used. Please note that the addition of the relay (usual four/five prong relay) was made to (successfully) solve a starting issue so I would like to retain it.
Sorry, but I'm rather ignorant of electrical terminology so I do not understand what you mean by the "coil" unless you are referring to the connection terminal on top of the starter ( I frankly thought that it was a solenoid). Same goes for not understanding NO and NC contacts on the relay.
Hope that you can help, anybody else for that matter.
Cheers,
Johan