No you don't have something special, you just have an older unit. The Tuner List ones were the earlier units, so basically any head unit would work with yours with an adapter from Connects2 or Incartec.
The Sony unit you have bought will only work with the steering and display on an Update List unit.
Your steering controls don't work cos you have a Tuner List radio as standard, these Sony units only work when you have an Update List unit as standard because the wiring is different in the plug that comes from the steering controls.