Reply to Help me out, how's this sound?

I've been trying to work more on my mix-downs and get a bigger and better sound. I am not sure what else I have to do so if you could give me some suggestions on what I could be doing better that'd be awesome, thanks.

I've played through my cars stereo system and the bass seems to disappear as I turn the volume up more and the synth is not as bright.

https://soundcloud.com/soulandcloud/sample