2003 Infiniti G35

Electrical problem
2003 Infiniti G35 6 cyl Two Wheel Drive Automatic 90000 miles

While everything is fine when the car is first driven, after a while, both the air conditioning and radio LED displays go blank and none of their controls on the dashboard work. The radio and air conditioning continue to work (at their last settings) but none of the settings can be changed.
Interestingly, all of the radio/CD/tape functions can be changed from the controls on the steering wheel even though you can't see what mode/station you're listening to. Re- the climate control system, you're stuck with the last setting.
Thanks for any ideas. LG
November 16, 2009.

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