I checked the paperwork on mine and it says that the AMP PCM and TCM were updated. AMP F2.07.00 - F2.08.00. PCM 68307045AD - AE. TCM 68307047AD - AE.
No idea what any of that means. After using it for awhile now and getting the sound set the way I like it, I have to say that I LOVE the stereo. It's really quite good now and I get a lot of compliments on it. This is what I expected out of the upgrade.
Also, I can say that Jeep did care on this one. Not only did Chrysler help me out, but they extended my warranty to 5 years / 100K miles for the hassle I had with the new car. Outstanding!
Everything is great now about a dozen computer upgrades. It's a shame they are not delivered to the customer this way, as I think the vehicle would have a much better reputation and it would help the residual. I can't imagine how many people drive around with the rough transmission, poor audio, and other issues that are an easy solve. Either way, I am ecstatic and my Jeep is driving beautifully.