[Mr.ac]

If it was me, and I wanted to spend money, I'll start off with a way better head unit. Even the new one 2016 are utter dog shit.

A good aftermarket one will have all the bells and whistles and more than the stock head unit has. And let's not forget way better audio controls and mofo'ing eq 's and pre amps!

Then some nice $200 components (insert any brand here) with the full sound dampening. I already have the amp and sub. That would be way more pleasant than stock.

Then again I am driving a mofo'ing cheap sports car not a 7 series bmw.
So eh...