So, you have a nice BMW. It's fast, handles great, and has a great sound system. It has everything you can ever need in a car. Well, almost everything. The only thing that is missing is that you have no way to connect your iPod to the factory BMW sound system. There are a few aftermarket adapters that can solve this problem.
The first aftermarket adapter is known as a wired FM modulator. A wired FM modulator connects you iPod through the FM tuner in your factory BMW radio. The wired FM modulator interrupts the factory FM antenna and sends the signal through the FM tuner. Since the modulator isolates the stock antenna away from the factory BMW radio, there is no drifting or interference from the powerful radio stations in your area. Even though this iPod adapter works great, is inexpensive, and is a good solution for your problem, there is a better option.
Another adapter, know as a BMW iPod Adapter, happens to be your best option. A BMW iPod Adapter connects to your factory BMW radio using the CD changer port on the back of the radio. This port allows for a high quality audio input as well as control of the iPod from your radio and steering wheel controls. Also, a BMW iPod Adapter has the provisions to charge your iPod.
A lot of people are weary about controlling the iPod from the factory BMW radio. The reason being is that once you connect your iPod, the adapter locks your iPod and only allows control from the factory BMW radio. If you have a lot of songs on your iPod it is almost impossible to get through all your songs using the seek up button on the factory BMW radio. The better BMW iPod Adapters have this issue solved. If you feel that it would be easier to get to the song you want using the click wheel on the iPod, all you need to do is push a button on the radio and it will unlock the iPod so you can use the click wheel to select your song.
It can be frustrating to have a great car like a BMW and have no way to listen to your favorite tunes because it has no connection for your iPod. Even though I recommend using a BMW iPod adapter, either of these adapters will allow you to listen to your favorite songs on your iPod in your BMW.