I would go a little further. CDs themselves, even with mp3 format, need to go the way of the 8 track tape. Instead of the 6-disc changer, the RF should have had an in-dash hard drive mp3 player with a module that you could yank and connect to a PC to add/delete/organize/set playlists. Also, it would have been nice to have another module for satellite radio that you could yank and connect to your home stereo. By eliminating the 6 disc changer, there would have been adequate space for both an mp3 player with a 240 Gig Hard Drive and a Satellite Radio module. (Instead of crawling under the dash and spending an entire day dissassembling the vehicle to install a satellite radio unit)
And on the topic of high capacity formats, why don't they have a DVD player compatible system so you can put 4 Gigs of mp3 format songs on a single disc?
Further, as far as formats, mp3 is now inferior to other, lossless, compression formats. I think the changeover to a better format could be accomplished on hard drive based mp3 players by a fairly simple firmware change.
I believe that the main resistance to mp3s stems from (1) an association with piracy and (2) the desire of the record companies to maintain a customer perception that a dozen songs on a CD for $17 is a good value (this is tougher to sell when in mp3 format, as the CD is 95% empty). They maintained this perception pretty consistently from the progression from vinyl, to 8-track, to tape cassettes, to conventional CDs. But now they have huge resistance to mp3 because a dozen songs is a drop in the bucket. Also, the mp3 format is associated with the "ala carte" purchase of songs, which makes it difficult to sell a CD with a dozen songs for $17 when all the consumer might really want is one song they can download for 88 cents.
I do think that there is a corporate "conspiracy" on this topic, because all of the big car companies seem to be aligned in not putting mp3 player or mp3 format CD players in their OEM car audio systems.
Also, I think that CDs are an environmental problem in view of the labels, jewel cases, plastic wrappers, and CDs that will increasingly clog landfills. This is a huge waste in view of the fact that you can put the equivalent of racks and racks of CDs on a hard drive that will fit in the palm of your hand.
O.K., enough ranting. I'm sure that the 2015 Titan will have a nice system where I can just say "computer, play "Born To Run"