If you have a car that's slightly older or came with slightly less niceties than you really wanted, you can always go with an aftermarket stereo — but sometimes the upgraded tunes aren't the only thing that needs help. The Sony MEX-BT5000 ($TBA) takes things to the next level by providing Bluetooth handsfree integration right from the head unit, including browsing your phone book, contact storage, and an integrated microphone. No word on whether it's coming stateside yet, but we've got a home waiting for it when it does.