I'm currently in the pit under the car typing this on my iPhone trying to fit the altenator wiring harnis, on the back of the altenator there is a 2 pin plug and a lug to attatch a ring wire.

 

However the harnis seems to have to 'ring end' wires on it which wire goes to the lug on the back of the altenator? Why are there two? Do they both go to the lug? On is slightly larger than the other

 

I know it's late but any help asap or a diagram would be great thanks

Here is what ive edited for you from another site, will explain where they go.

 

The two wire connections on the back. Use the 8mm wrench to loosen the ground wire, and the 10mm wrench to loosen the battery connection nut. Twisting the unit to get each connection point towards the floor as you disconnect the wire will give you the most clearance.

 

14. After the wires are disconnected, flip the unit upside down to expose the power connector. Grasp the connector firmly with your left hand and use your right thumb to depress the latch on the connector while pulling and wiggling from side to side on the connector to release it. Mine was really tight, so it may take some effort.

 

 

18. Once in place, tighten the ground wire, battery connection, and electrical connector in that order. Rotating the alt. to get the bolt you're trying to connect towards the floor will give you the most room to work with the wires.