So I finally got my SD Chiller kit installed. I am currently pulling from the winshield washer resivoir. Where can I find a T connection with the correct size fittings, so I can actually wash my windows this winter?

I would not tap into your windshield line. That line is fed by your windshield washer pump. I am not sure if the pump will allow for the water/meth pump to pull through. At anypoint it would be a restriction to your pump. I simply drilled a hole large enough to accept a rubber grommet that also fits the 1/8" hose feeding the pump. I just put the hose about 1/2 inch up above the bottom of the tank to keep from sucking up any trash. I also put a secondary filter that I can replace the filter seperatley if needed.

I already have it plumbed from the splice on the drivers side. it is pulling through the existing windshield washer pump fine. others have done the splice, but I need to know how the did it to keep using the windshiled washers also.

Won't you put fluid into intake when using the wipers with your current set up? Or do you have some sort of anti syphon set up in your line? If not I would assume you would create a vacum that would pull fluid in.