A/C problems in this 100 degree weather !!!!

[KazuyaIB]

Just a quick question... I recently changed all wiring on my 86truck to a 91 suburban for fuel injection. Two (GREEN) wires are coming from my A/C side as I kept the stock A/C wiring of the truck and one (GREEN) wire is coming from the 91 fusebox on the outside.

Is it ok just to put all the three green wires together or is it better just to install the 91's A/C wiring.

If I didnt explain myself let me know, and also let me know the difference in A/C wiring from the older 86 that required 2 green wires as opposed to the 91 suburban having 1 green wire.