Upgrade sounds

[Deep Purple]

Just got a cls 350 Cdi 2010 model. Any suggestions on upgrading the sound system, it's a bit flat and not punchy. The Bose in my last car was much nicer.
I don't want to spend a fortune either ( tight bugger!)
I'm in Southampton anyone got any suggestions who I could get to do work as well

 

[Headhurts]

I'm not sure if the system in mine (2016 E350) is any different but I have to say I find it awesome for a standard fitment.

I'm not a music enthusiast but I do have decent stuff at home mostly B&W stuff with some Bose.

Sound is very dependent on source though.


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