A Bluetooth transmitter lets you play music from your devices in an older car, and usually adds USB charging, too. Pho ...

TL;DR: The EVE II Bluetooth Transmitter & Receiver delivers up to 20 hours of seamless audio, dual-device pairing, and ...

Earlier in February, Mixx announced a $99 suitcase record player featuring built-in speakers and bi-directional Bluetooth ...

In this project [Ryan] shows how he added Bluetooth audio to the stock stereo of his Toyota Matrix. The work he did with his add-on hardware is quite good. And the installation was surprisingly easy.

or you might want to go with Bluetooth audio if your smartphone no longer has a headphone port. Whichever way you go, the process of modifying the stereo is largely the same. To achieve your goal ...