The Final Word
After the install, I plugged in the iPod and placed it in the glovebox. The controls are overridden, and the battery charges simultaneously. Now I can use the band button on the radio to toggle between AM, FM, and iPod. From there, the preset buttons allow for navigation through playlist, artist, album, and genre. This interface works well while maintaining the factory look of the interior. The system is stealthy and should keep my truck under the radar of the evil stereo bandits.

Precision Interface Electronics