I'll try to answer your questions while you wait for Lexusaudio's response.
When you say 2quick connectors are missing... What are the wires color? Are those 2 wires labeled? "Navigation Park Brake"? If its labeled that, you do not need to do anything with them, leave them alone.
-Make sure you have your speed sensor wire tapped in. It is plug E-6 wire 22, the violet/white one. **SEEN IN POST 8**
1. Make sure your antenna is properly connected to the computer drive. You should be able to see a "GPS" box on the top left side of the screen under the RED/WHITE ARROWS. That will mean that you are receiving a signal. Once you drive for a bit it will automatically pick up your location.
2. Like i said make sure you have properly connected the speed sensor wire and also make sure your diagnostic wire is hooked up. The diagnostic wire is under the steering wheel by your knees. Refer to my post 10, it will be connector wire PINK with BLACK stripes Wire #13.
3. Just trying to clarify your question... Everything lights up, but the A/C buttons? Are you referring to the "AUTO ****:OFF:FRONT:MIRROR, REAR DEFROST...etc"? I would make sure that all the connectors behind the unit are secured on well. To turn the A/C on you would hit the A/C button. When you do so, you will see it being displayed on the screen. To turn the fan on, on the mode **** turn it to your desired fan speed. This will get your fan running. To change the temp, you will then turn the AUTO **** to your desired temp.
Hope this helps. Gus should chime on this shortly, he should provide more help.
-Yosh
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