List of all the head units for a 2004 S40 1.9T?
 

So I have a HU-555 head unit in my car right now, I'm actively on the lookout for one with a cassette player as well as the CD player. I now know that there are a number of head units for this car, including the HU-415, HU-615, HU-655, etc. I'm sure that's not all of them and there have to be more out there.

My question is, is there any manual or Volvo document that contains a list of all the head units produced for a car? I want to find the best possible head unit in terms of capability and features, like cassette player, autoreverse without a flipping head, Dolby, etc.

Thanks.