When I test drove the TCH I brought my iPod with the jack that connects the iPod to the aux. jack and it sounded great. The thing is you need to adjust the volume on you iPod about half way and then use the volume control on the car to fine tune the volume level. The item that Larry suggested allows you to control the iPod using the controllers on the steering wheel and it will allow you to see what is playing on the Nav screen (or the radio screen if you don't have the Nav). If you just use the jack mentioned above you have to use the iPod to select songs and to see what is playing.