X2...
The navigation on my new JVC KW-XR810 is much, much simpler than the Pioneer's "everything on one knob" control fo their 8100BT.
The new JVC's KW-XR610 offers a heck of a lot of features (USB, iPOD, Aux, etc) in a Double-Din deck for less than $200, while the XR810 adds Bluetooth, preamp controls, etc. for another $100 more...