I accidently hit send before finishing the original post.

Need some help with my MPV.

In a nutshell, the charging system is not working.  Hooking a
volt meter up to the battery at idle shows about 13-14 volts at
first with the voltage slowly decreasing.  The voltage drops to
about 11.5 volts under any kind of load (headlights, A/C,
windshield wipers, etc.).

All fault lights on the dash are normal, except the charging
system light comes on when the voltage starts to drop
significantly. I have noticed the tachometer will also stop
working at this point.

I have seen many posts from others experiencing the exact same
thing on a variety of vehicles, but have not seen anyone reply
with a solution. I have already tried the following:

1. New battery.
2. New alternator.
3. New battery cables.


I have not yet looked at the coil (or whatever cars use these
days) to see if there is a fault there as it was looking like a
typical battery/alternator problem up until now.

Any help would be appreciated.