I think a better comparison would be to say you want whatever radio Mercedes includes with their car even if it's sub-standard like most car manufacturer's stereo systems are (very very few are any good and Bose is not a great brand despite their own horn-tooting). You WISH it came with a great stereo system because you don't want to install a great one yourself, but so far they just won't deliver what you're wishing for. Although, most manufacturer's in-dash GPS suck too and they're VERY VERY expesnive options on most cars ($1000-2000 for something a $200 Garmin does 3x better).