Factory fitted speaker upgrade - New Merc C Class

[Gunneth92]

Hi guys, I've just bought a new Merc C Class Coupe and stupidly didn't upgrade the speakers and they are shockingly bad! They're tinny, poor quality and have no bass whatsoever. Wondered if anyone knew of anywhere in the Staffordshire / West Mids area that would be able to help?

Sadly I'm no good at in car electronics so wouldn't be in a position to do it myself... It'll all turn out terribly if I tried!!

Hoping you can help :-)

Lee