The 2010 Subaru Impreza WRX and STI are a bit on the pricey side, even in base form, but reviews read by TheCarConnection.com indicate that you get a lot of bang for your buck.
In base form, both the Subaru Impreza WRX and STI come very well equipped. Jalopnik’s testers note that the standard "Stereo with Aux input sounds pretty good...but you won't want to turn it on [since] it covers up the engine noise," which they happen to be quite fond of. The base stereo, according to Edmunds, features "80 watts stereo output [and] four total speakers," as well as "speed sensitive volume control."
You can easily hook up your iPod to the WRX radio's auxiliary port, though true USB compatibility is a stand-alone option. Six speakers come as standard, but opt for the Premium package and you get a much better-sounding 10-speaker system. A subwoofer is available with both options, as is a navigation-and-satellite-radio unit.
For those interested in the high-powered Subaru Impreza WRX STI, ConsumerGuide points out several extras, including "Leather/Alcantara upholstery, AM/FM radio w/in-dash 6-disc CD/MP3 changer, [and] steering wheel radio controls."
There is a generous list of options, though these can be a little pricey. The major optional item, according to ConsumerGuide, is the Satellite and Navigation Package for $2,000 that adds a "navigation system, satellite radio, [and] wireless cell phone link" for Bluetooth-equipped phones. For 2010, the navigation system also includes a microphone in the overhead console. One of the more unique features of this setup, as noted by Jalopnik, is that, "with the navigation system, the center console provides an input for MP3 players as well as RCA-type video jacks that can accommodate portable gaming devices," which display on the navigation screen anytime the vehicle is parked.