Dension 500 interface
As others have said, the interface is a little less refined than the AMI, but still very usable.
Two main pro's of the GW500 over the AMI:
1) The ability to have multiple sources connected at the same time. I believe that the AMI interface can only have one source at a time, and needs a change of cable when you change the source.
2) The GW500 is a much smaller size than the AMI. I've installed mine behind the in-dash CD Stacker, and thought quite carefully about optimum connector placement.
This means that I don't lose any valuable storage space under the arm-rest, and no practical loss of space in the glove-box.
I have all the connectors installed nicely into the glove box, with the main music source being an unused iPod nano.

We mainly only use the USB interface to charge our mobile phones.
The only (very minor) gripe I have is that I wish the GW500 analogue connectors would have included a 3.5mm audio jack as well as the RCA plugs.
Having said that, 3.5mm-to-RCA connectors are quite common.
Tim





