Alright so I have done a little bit of research into replacing the grande head unit before. Now if you just want a big head unit to fill the space alpine makes an 8 inch double din head unit. Problem being. You can't use the volume and tune knob in your car to control the alpine unit. If you wanted a clean look with this the best option would be to get the non satnav fascia with the big hazard light button and all. While the alpine head unit will fill the gap and do everything you would ever need it comes with a hefty price tag of around 2600 uninstalled plus fascia cost. Now a cheaper and, my opinion, better alternative. There is a company I believe in the states that makes a satnav/head unit for the kluger with use of the oem knobs and steering wheel controls. It's cost is about 299 aud plus shipping. It has all the aux connections that we so desperately want. Now unfortunately i lost the link to it.