I bought a Pioneer DVD touchscreen off of ebay for about $200. I LOVE IT! Install wasnt bad. Only mod was the metal plate behind the stock radio had to be removed. As for things you need: double DIN adapter, antenna adapter, and wiring harness. I have even added headrest screens now for the kids. Only issue I had was the screen safety feature I had to bypass. Total install took about 2 hours and the Pioneer has headphone jack, USB for my iPhone, SD card, and all the goodies for my sound system.
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