I see the next update to the Mazda3 will be minus the CD player. Guess that will flow onto the CX-3. I've only used my CD player a few times and that was mainly to test that it worked. I use the USB mainly with an occasional (very) use of an iPhone.
So many will be asking what's these 45's and 8 tracks you're referring too. If you'd also included cassettes that would have been over the top. Lol...It's a CD player? I've been trying to force 45s in mine since I got it. Now if I can just find out where 8 tracks go, I'll have room for a third person in the car.