Last week I picked up a Pioneer AVIC-D3 from a co-worker for pretty cheap and got it installed (mostly). The only things left are to secure the microphone and GPS antenna, oh and seal the area around it, there is a small gap on each side. Took about 3 hours total, I thought it would take a lot longer to route the wiring but it wasn't bad at all.
It's pretty cool, I've never had a navigation system before, and it speaks the directions to you while muting the radio or whatever. It came with the bluetooth adapter and the iPod hookup cable too, which saved me quite a bit.
One feature I really like is it can change the background images, color scheme, and button colors to match your interior. I also like that it's not motorized, otherwise it could hit the shifter. There are so many options I haven't even set everything up yet.
Unfortunately my iPhone's bluetooth is crippled so it can't send the phonebook to the unit, I'll have to enter them manually unless I can get my computer to spoof the bluetooth address and pretend to send the phonebook entries from the iPhone.
Here's a few pics I took with my phone on the way home today.
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