12 Cd changer

I recently got a cd player installed into the trunk of my car. It holds 12 Cds! I was looking for something that would hold maybe 1 or 6 Cds, but then they were a lot of complications with those ones. If I wanted the single Cd player in the car, I would have to take out the original audio player in the dash. I didn't want to do that because there would be a nasty gap in the dashboard. So I moved on to choosing the in trunk Cd players. The 6 Cd holder wasn't compatible with my 18 year old speakers. Then the only options left was the 12 Cd holder. THe thing was $300.