I want to get higher quality sound & more bass from my C280. Right now I have the premium bose system in the car and I think it's pretty good for stock but limited especially if you want to crank up the volume and headunit is waaaaay outdated..

So I want to replace headunit, add 1 or 2 subwoofers, and amp. Would it work out with the stock speakers, or would I have to replace all the speakers too?

How many speakers are in the car? I think there are 6 speakers in the car (2 in front doors, 2 rear doors, and 2 in the trunk)

Also let me know what you are using personally in your W202. Thanks for reading