Chrysler Repair: 2000 intrepid wont charge, jumper cables, 2000 dodge intrepid

Question
my 2000 dodge intrepid with a 2.7 engine, won't charge. i just put a new battery in in april.  the car drove fine, until about 2 days ago. while driving, the battery light came on, and the car died a few minutes later. the battery was drained to the point that when you jump start the car, it would die as soon as you remove the jumper cables. i got the car home and charged the battery. i cranked the car and put my volt meter to the remote jump terminals. i only got the battery voltage of 12 volts. i removed the alternator and had it tested at autozone.  it tested bad, and i replaced it. after installing it, i still had only 12 volts. i checked the wiring from the battery positive to the alternator and had 12 volts. ( both with engine running, and engine off ) i have 0 volts on the orange and 0 volts on the green wires. i've been told that if the voltage regulator is bad, the alternator will either overcharge, or won't charge. i've also been told, that the regulator is in the computer, and it can't be replaced without replacing the whole computer, and that a used one probably wouldn't work, because it would have to be programmed to my vehicle. does any of this sound right, and do you have any answers that may help me. thanks.....robert.   p.s. i forgot to mention that i took the  new alternaor off, and had it tested twice more at two different shops, and it still tested good.

Answer
Hi Robert,
I am unclear about the "orange" wire which I will assume is orange with a dark green trace, and the "green" I will assume is dark green.
The orange/dark green should show 12V when the engine is running because that voltage comes from the autoshutdown relay which also powers the fuel pump, etc. So I suspect that either fuse "T" (20 amp) in the power distribution box under the hood is blown, or that a connection in the box from that fuse to that wire is open; probably the fuse is bad and was blown by the bad alternator. The dark green wire is the voltage regulation wire from the computer so don't worry about it: it will either have 12V or be grounded as the computer directs it to be. So that is my best bet. See if the fuse is blown because without it you can't get the alternator field coils to magnetize and so it won't produce any current/voltage.
Roland