CD Changer cartridge

[ehmand]

Can anyone tell me where I can get an extra 6 CD cartridge for the factory CD changer in my 95 S320? Do I have to get it from the dealer?

I don't know who made the changer in this model. I've seen people mention Alpine, Bose and others, but there is nothing other than Mercedes Benz on the head unit.

I also find that the "1" button does not work reliably - you have to press it 20 or so times to get it to register once - if you are lucky. Wouldn't be a big deal other than the code you have to enter if you disconnect the battery has 2 "1"s in it....