Given the price difference between the two, is the Sony sound system in the TI worth the difference? That seems to be the only difference now that you can order push button start with the SE. A loaded SE is the same price as a Camry and exceeds what the Camry offers with the push button start. Alternatively, if the standard sound system isn't that great does anyone have experience with after-market sterio upgrades. I wouldn't change the navigation, I would just update the speakers. I'm not even sure if that's possible. Basically, what would it cost to put an after-market sound sytem in that matches or exceeds what is found in the TI.