Solutions exist.
$25 USD - $1000+ USD.
It all depends on what the final result you are looking for and how much time and money you're looking to invest.
$25 will get you a bluetooth adapter that plugs into the Aux port. Allows wireless streaming via bluetooth and auto pairs with your phone once you turn on your car. No steering wheel controls though.
$70+ tune2air bluetooth adapter. Same deal as $25 one except it gives you back steering wheel controls and if you use an iCrap, then you get some track info displayed.
$100+ $400 retrofits and after market bluetooth modules/kits. Search is your friend on this sub-forum
$500+ Avinusa, Dynavin etc. Aftermarket headunits. Also retrofits territories.
I'm in the $400 spend few years researching it and do my own custom one. I'm almost there
