I know nuthing....replace stereo on golf with self parking ?

[Rangeroverover]

Help needed, I know nothing about car stereos..........still call it the wireless......problem

Wife has a 2011 golf match diesel (1968cc) with self parking, steering wheel controls, sat nav etc.

I want to change the double din radio for one with DAB, reverse camera, sat nav, bluetooth iphone connection etc

question 1) Does it matter what sort I buy, will they all connect up to steering wheel controls

question 2) will I need a new antenna for DAB

question 3) self parking info comes up on a separate screen on the dash, so now I think of it, it shouldn't make a difference

I don't want to spend a fortune probably £250 at most, any suggestions as to make model and maybe an installer near Exeter

[Rangeroverover]

Thank you for that...it doesn't have DAB, I have found an RCD on ebay for £160 with DAB , will the satnav on it need updating or should it be plug and play