Every auto manufacturer does this. Include a "Bose", "Harmon Kardon", or "B&O" sound system as part of a multi-thousand dollar premium package. Speakers are still the same paper cones as the trash-tier sound system; only difference is in some amp tuning, a sub, and a few tweeters. No surprise: the resale value of these systems is pennies by comparison.
For my particular example, I can at least say that the Burmester tweeters seem significantly better over the Bose, being solid (and heavy) ribbon tweeters, and not light cone tweeters.
