I need help please from anyone that understands or might just have an inkling about electrics in a Mk1 Mini. The previous owner has taken it upon himself to do a lot of the wiring which all seems ok but, as of today it all stopped working. I built a new dash for the car, re-wired it as the previous had been and put it back. Car started, all gauges worked but then for no reason, everything stopped. No power to the dash at all, nothing to the indicator which isn't even part of the dash set up!
I have checked fuses, i have checked connections, grounds etc but can't find anything that would have caused this. I have included a picture of something that i do not know the name of. The previous owner had really beefed up things on the electrical front, extra fuses, larges wires and this...thing. One of the connections that ran from this part (picture) ran all the way to the start button on the dash but now the same connection has no power.
I am sorry if i sound vague but i really am at a loss and i hate the electrical side of things.
Thanks in advance.