I have a 2003 c320 sedan with stock bose system. I was wondering if i could add new speakers and an amp to the system to make it sound better. Is it hard to do and is it possible?
Welcome to the forum, and I invite your attention to the search tool. Your Bose system likely has fiber optics between the head unit and the amp; and copper wires between the amp and the speakers. Thus, if you replace the amp, you replace the HU. Some folks tap off the copper wire amp outputs, using output converters to step the output down. Some do this for entire new amps, others for subs only. There is a lot of discussion about it on the forum, so enjoy your search.
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2005 S500 4-Matic
with Gateway 500 iPod integration
Formerly: 2000 S500
with Ice>Link iPod integration
Moto V710 phone with MikBox
Upgraded Voice Control