I've been reading about different devices I could use to connect my iPod through my car stereo. I thought my only options were FM transmitter or purchasing an after market head unit. I found out that there are companies that have created devices that allow you to connect your iPod to factory head unit and use the head unit buttons to scroll through albums, artists, etc. Peripheral Electronics creates this devices for many different ford vehicles. I'm looking into getting one for my 2007 Ford Focus. Has anyone else tried Peripheral Electronic Devices in their car?