Brian H 
2015 Toyota Camry Sedan XLE 4dr Sedan (3.5L 6cyl 6A)
Make sure you have the right tires!
 This is a no-frills car, which you will more likely buy for it's Toyota stamp of reliability rather than its features. For example, I can buy a 4x4 Jeep Grand Cherokee for approximately the same price, which has far more room, better traction, and a superior factory stereo. If you buy a 2015 Camry, make sure they either put 16" tires or 17" Michelin MXM4 or MXV4 tires. The XLE V6 comes standard with Bridgestone Turanza tires and the ride comfort was substantially (dare I say, catastrophically) worse than on the Michelins. Next is the Premium Stereo (ugh): the V6 comes standard with it, and it comprises of a head-unit, a cross-over amplifier, and about 10 of the crappiest speakers to ever come out of Mexico (I know, because I took them out and they say "Made in Mexico" on the back of the speaker). Changing out the speakers won't solve your sound problem, however, because the cross-over directs specific frequencies to each speaker, depending on size: Three small speakers in the front and two in the back receive the high frequencies (~5-20 kHz) and the two door and one rear dash subwoofer receive the low frequencies (1kHz and below). THE PROBLEM IS, as you can see, there are no mid-range speakers in the car; and, even if you install midrange speakers, there is no way to push mid-range sound to them, because THE CROSS-OVER DOESN'T HAVE A MID-RANGE OUTPUT. This means you get to hear ear-splitting highs and thumping lows, but entirely lose those "rich" middle sounds that set great stereos apart from dollar-store knockoffs. So, to correct this, my first inclination was to replace the cross-over amplifier with a regular amplifier. "Can't do it" says the aftermarket audio car installer, "because the head unit puts out digital (not analog) audio that is designed specifically to work with the factory cross-over." This means that the only way to get better sound is to gut both the head unit (which contains all of your navigation features) along with the cross-over amp and replace both of them with aftermarket components.. Well, the only problem with that is, there ARE NO AFTERMARKET head-units for Toyota Camry.. at least not yet. In summary, expect a substandard sound out of your "premium" stereo system, until such time as you can throw a thousand dollars into replacing the head unit and amps (at the cost of your navigation, which isn't a exactly a peach to use anyway). If I had to do it all over again, I think I would have spent another 5k and bought a car worth the cost. Time will tell whether Toyota's reliability can outstrip it's ride comfort and technological antiquity.