This thread was very helpful. A couple of questions:
If I don't have a soldering iron of any kind, is this still a DIY with the correct harnesses? I consider myself above average capable for projects like these, but have never done any car audio work.
Also, how would this unit compare to the other models I'm seeing such as the AVH X3500, 4500, 5500, etc.? I am having trouble finding a decent comparison. It seems like the 5500 might have better resolution than the P4400, but I'm not certain.
Current reviews suggest that the x5500bhs is iphone 5 friendly and it doesn't seem like I would need the accessory cable if all I wanted to do was stream audio (song information is apparently pushed over BT on this model).
I appreciate any input.