Ertiga Sound System

[VISHNUCARCRAZY]

Hi Guys.
I recently booked Ertiga ZXI in brown color and expect it to be delivered by end of the year.
I liked all the features in car except that the sound system does not have Bluetooth, so I started looking for sound system that supports the following:

1. support for USB, aux and Bluetooth (Bluetooth is must)
2. Works seamlessly with the steering controls (no point in having those if they don't work)
3. Touch screen
4. supports rear camera (which may require additional purchase)

I looked at the Sony XAV-68BT which according to the Sony site (XAV-68BT : Mobile Display : Xplod™ In Car Visual : Sony India) says is compatible with steering controls, but according to showroom guy its not.

So please suggest a car audio system that meets the above points and in the range of 20-30k

Same experience here also ,showroom guy told steering control doesn't work,but consulted my usual accesories shop,he told it will work.