For the cooling system: you have two plugs which are connected to the injector loom. One brown and one blue. the brown I believe is for the temperature gauge. they are different so you can't reverse those two. the other cooling wire goes into the side of the radiator. This one tells the aux fan when to come on when using the a/c. should be on the left side of the rad. the aux fan plug is a heavier 3 prong plug which runs behind the left side headlight to plug into the receiving end of the fan.
a/c should have two plugs. A green one that fits into the receiver dryer and the other for the a/c compressor. Again these are not all the same. Each is different. You just have to go through them one by one.
hope this helps.