The 4.8 is finally here after 3 weeks of delivery by DAS. The worst shipping company ever! 6 days sitting at origin before loaded on a truck and 12 days sitting in Chicago waiting for the next truck to MN. Customer service was giving me a bunch of bull so I emailed the CEO! The truck left that night!! Anyways,

I researched and read a lot of info on the Dynavin system but before I purchase, I wanted to be sure. I have an 04 4.8is with factory nav and DSP, from what i gathered, I will need:
1. Dynavin E39 - D99 model? Some ebayers have a year associated in their ad titles but not sure what this means?
2. Need an extension kit for the nav? Does this cover the DSP needs? Or do I need the Fakra cable for DSP?
3. Is there a way to identify unit ver? 2012 vs older models?
4. How does the nav work? Do I need to tether to my iPhone or can it be a stand alone?
5. Finally, can you pls recommend a good source to buy with lower prices?

Thanks! Sorry but there so many threads and I'm guessing some had to do with older technology that perhaps now improved to address shortcomings!

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Current:
2017 640Xi Convertible
2011 Acura MDX
2018 Santa Fe

Past:
2013 Honda Accord
2008 Acura TL Tech.------2004 BMW X5 4.8is----2004 Acura MDX Tech
1994 BMW 525i.----------1994 Lexus 300 GS.----1994 Acura Legend GS
1991 Acura Legend LS.----1991 Honda Accord.----1991 300ZX twin turbo
1996 Buick Regal GS.-----1984 300Z 50th anniv.--2002 BMW X5
1982 280Z