wire splitter

[kglowacky]

Been looking at online to find a 3 way wire splitter . Where I can connect 2 wires on one side to 1 wire on the other, I want to splice into my wire from my cooling fan to my relay so I can add a second relay and a/c system upgrade. I am looking for some kind of wire connector/splitter that will let me add the wire and still be able to keep it looking factory. I would like a possible plug to be part of it in case I need to ever disconnect I can. All I seem to find is butt connecters and Y looking butt connectors that I don't want. I find pig tails but they do not come with the both plug sides. Anyone have a source for what I am looking for? Thanks