Not for modern vehicles. The entertainment system is just one of the functions handled by the dashboard touch screen that is present in virtually every new vehicle. I know mine controls climate control, navigation, phone pairing, cameras and a bunch more. There is no aftermarket equivalent.
No such problems for me : my vehicles range from 1957 to 1999 for my daily driver - all Mercedes-Benz .
The older cars have period Blaupunkt or Becker units .
For my newer vehicles W124 300TE , R129 300SL-24 , W140 S320 I have Sony Mobile ES systems : two of them have the XRC900RDS cassette head units and in the S Class I have the CDX910RDS ; all have the XDP U50D DSP unit ( which gives multiple surround modes , time delay settings for each individual loudspeaker , parametric Eq and much more ) and in the S Class I have two CDX 805 changers in the boot while the other two each have two CDX 91 changers . I have a variety of Sony and JBL amplifiers in the different cars ; the W124 has KEF KAR speakers ; the SL has JBL speakers and the S Class has the factory Bose speakers which are OK if not great , may still upgrade them . I find that two magazines loaded each with 10 CDs is more than enough for any journey and I have plenty of magazines that I can preload before going out .
I have Bury carkits in all my cars , which actuate the telephone mute function on the three Sony systems .
I certainly couldn’t cope with standard fit audio in any of my cars but then I’m more likely to buy more older cars than newer ones - especially since historic vehicles are exempt from ULEZ zones across Europe and I can drive in them with impunity as long as I’m in cars more than 40 years old .
I hate dashboards that light up like Christmas trees , and the advent of these screens is just another distraction when driving at night on unlit roads ; they are also a danger since you no longer have switches that you can locate by touch , instead having to take your eyes off the road and locate virtual buttons on a touch screen , even worse having to navigate through menus to do something like change the heater setting . Physical controls are both simpler and safer so these screens are a real backwards step and it will be interesting to see statistics re how many crashes have occurred when people have taken their eyes off the road .