I have an Eclipse AVN6610 in my Town Car. It's a fixed double din with a fold down screen for discs. Prices are going down and features are going up. My 6610 controls a rear view camera, Sirius tuner w/ Nav Traffic, HD radio, iPod, has a DVD player and can also control a TV tuner and is dual zone so you can have a DVD playing on screens in back while listening to the radio up front. It also has auxiliary inputs.
Now, if you're looking to make a clean, custom install...
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