And the winners are:
sharp4runr and jharris2
That is the connection for the ashtray with cigarette lighter. The wires are as follows:
Cigarette lighter:
Hot - Pink with Blue stripe
Gnd - White with Black stripe
Cigarette Lighter Illumination
Hot - Green
Gnd - White with Green stripe
Ashtray Illumination
Hot - Green
Gnd - White with Green stripe
If you look forther under the center console (further to the rear of the vehicle), you'll see a 2 pin connector (red with white stripe and a green) which is the outlet for the stock inverter.
There are a number of threads talking about adding the inverter, but it was rather pricey, since you needed the inverter, the relay, the switch, the outlet. I can recall people coming up with numbers close to $700 or so to add the stock inverter.
Do a search for inverter and you should pull up a number of older threads talking about this.
Tom