I got this magazine called Think Geek and i went on there website and found two products that use a Cassette tape to play music or connect with your phone.
Stand Alone or Car Cassette MP3 Player:
In between the beloved LP record and the now familiar CD, there was another music media format - the cassette tape. It was very popular during the 80's and one thing that definitely made it standout was that, unlike a LP, you could easily record onto a cassette tape. Before that your recording options were primarily limited to reel-to-reel tape machines, which were usually pretty large and sometimes not so friendly. Being able to record onto cassette tape also lead to the ever popular "mix tape" - which was usually a collection of kick *** songs you'd give to your wannabe girlfriend or someone else you were trying to impress.
This MP3 player is built into a standard cassette tape, letting you use it as either a uniquely old-school-style MP3 player, or with any car cassette or cassette player to play your music. You will have no problems listening to hours of your favorite songs via the built-in SD card slot, and you can easily change to different songs if you have multiple SD Cards. If you are into retro style looks but with a new technology upgrade, this is a MP3 player worth adding to your gear.
No internal memory - you must supply a memory card External memory: compatible with SD/MMC card (max. 2GB) Earphone jack: 3.5mm USB 2.0 System: compatible with Windows 2000/XP Battery: built-in 450mAh lithium battery Recharge battery via USB cable Use like a normal cassette in a car cassette player or cassette player Use as a stand alone MP3 Player Repeat playback mode 7 button interface Dimension: 2.5" x 4" x .45"
Don't want to put you out of business shane, Because you make Ipod adapters.
Source:
http://www.thinkgeek.com/gadgets/car/a5 ... ----------
Add some Bluetooth via your cassette tape deck:
The lowly cassette tape deck - you have to give it some credit, it is a survivor. CDs have been around for over 25 years and yet many vehicles still come equipped with a tape deck. Few other media formats have hung on so well. And to help prolong the life of this sometimes useful piece of ancient technology, we introduce the Bluetooth Cassette Tape Adapter.
With this handy Bluetooth receiver you'll be able to make and receive calls in the car with the built-in headset profile. Quick and simple pairing with mobile phones over a stable Bluetooth connection for seamless audio. A quick and easy way to make old technology new again.
Internal Microphone Tone and LED Function Indication Bluetooth Properties: Profiles: Handsfree, Headset, Class: 2, Range: 10m Power source: Internal battery (5V DC charging - adapter provided) Dimension: (102 x 64 x 12mm)
Source:
http://www.thinkgeek.com/gadgets/electronic/aad2/
I wonder if you have to have the Tape deck on all the time for this?
Enjoy all and Happy Holidays.