The picture attached is from a 2021 topic. Job obviously completed OK. I am having problems finding a source for the male single connectors. Can anyone recommend a supplier. Confirmation of the name most people know them by would help. If these were spades I have all types and sizes, but these pins are driving me mad.

Okay I know I am an idiot. The real question should be what Crimper do I use with this style of butt connector.  I will experiment on some 'blank' insulated connectors. 

Something like this will do: https://www.toolstation.com/minotaur-ratchet-crimping-tool/p46714

Yes spot on. My experiments gave same answer. My existing rachet should be great. Just never seen these 'tiny' yellow butt connectors before.

Oh, I just soldered my repair kit.

Yes at least you can see everything that is happening. I was considering it. The car is my daily driver I need for all the family commitments.