For me one of the issues with sound on modded cars is there is no bass, it sounds so thin and tinny, i am using a high quality external audio dac and very good headphones. if anyone wants to be able to EQ their sounds a little better try Equilizer APO and the PEACE GUI addin. this page explains them https://www.makeuseof.com/tag/windows-sound-equalizers/. I have found messing with the EQ to get more low end sounds way better than standard. you can also save any EQ settings and assign them to buttons for different cars. I appreciate it is a lot of fiddling around and it's not for everyone but the option is there for the time being until cars get updated.