200 RX300 Navigation upgrade

I just bought a nice 2000 Lexus RX300, all tripped up with HID lights, and 19" wheels.

I would like to install an OEM Navigation system and replacing the current display. Is this upgrade possible to have OEM LCD with either DVD or HDD based navigation software? are there any expert(s) out there who know of a solution?

Please advise...

I just bought a nice 2000 Lexus RX300, all tripped up with HID lights, and 19" wheels.

I would like to install an OEM Navigation system and replacing the current display. Is this upgrade possible to have OEM LCD with either DVD or HDD based navigation software? are there any expert(s) out there who know of a solution?

Please advise...
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Did you ever find out any information about a possible upgrade as you mentioned above? My wife has a 2000 RX 300 that I would like to get navigation installed if possible.