G'day guys,

Just wondering how much the Pioneer AVIC series double din gps (f/bt?) head units will cost second hand. I've had a look around, but I could only find prices for the older AVIC's such as the F310BT, which are going for relatively cheap. I've also tried leaving a post in the "How much for?" section, but have not received any reply, so I'm just wondering if I could be enlightened in this section.
Models specific to my query, that I was unable to find answers to are the AVIC F10BT, F20BT, F30BT and F40BT.

Much appreciated guys!
Zylon