W209 sound system versus W208

[Tacho D]

I recently replaced my W208 CLK 230 with a W209 220CDI While I am generally happy with the switch things like ride quality being harsher, interior quality cheaper, and the sound system have been disappointments. Whereas the previous car had a very impressive sound with a 13 speaker system including sub, the later 209 has a budget 4 speaker system, just two in the doors and tweeters inside the mirror mounts. The rear parcel shelf has speaker covers with only foam beneath. there appears to be provision for a speaker on the passenger side but none on the driver's. What can be done to improve this? Does the wiring exist for an upgrade where it may have been standard on the Avantgarde?

 

[sonic]

I seem to remember my W208 sounded better that the W209 I replaced it with.
The system on my current 212 E350CDI, is worse that both of the CLK's.
But I am not prepared to spend money on it.

 

[dry run]

It depends on what you are prepared to spend to upgrade the system. Any decent "car audio center" should be able to advise you.. I added a sub and an amp to my C207 and it transformed the standard system into a beast Cost £500 ish IIRC.