Sat Nav system advise

Paladinjc

Ok, Ladies and germs.

I need some advise from all you out there about my new Sat Nav systems. I am 2 to 3 weeks away from my upgrade. Looking for some advise on a Sat Nav/Radio system.

1st, I need a GOOD reliable Sat Nav. One that follows the best route.
2nd, looking for a larger screen, at least 6.9 inchs "that's what she said"!
3rd, want a good Radio that will work easily with my Iphone4, is easy to use and sounds good.

I listed the above requirements in order of importance to me. Below are the only 3 system I have though about so far. However I am open to any advise or recommendations on other systems.

1, Amazon.com: Pioneer AVIC-Z130BT 7" In-Dash Navigation AV Receiver with iPod/iPhone Control, Bluetooth, Pandora: Car Electronics

2,Amazon.com: Kenwood Excelon DNX9140 In-Dash Double-Din DVD Multimedia AV Receiver (Black): Car Electronics

3, Amazon.com: Package: Brand New Sony Xnv-770bt 7" Touchscreen Double Din In-dash Dvd/mp3/wma/aac/jpeg/mp4 Receiver with Built in Tomtom Navigation and Bluetooth + Night Vision Back up Camera: Car Electronics

Cherish...