BMW Aux Input - Quidzel

BMW Aux Input

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 25 reviews
by Sean on

Having somehow managed to last a year in my 2002 M3 without an AUX I am beyond satisfied with how the product works. The instal was simple, and the sound is great. Would recommend to anyone with a pre...

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You can add an Aux Input to your BMW! We believe that everyone should be free to listen to whatever they want – no more burnt CDs or cassette adapters. Our aux input kit works great for BMWs approximately 1997-2005, especially pre-2003 radios. You simply connect a cable to your factory radio and install a tiny module – Quidzel will be here to guide you as you start enjoying your music again!

Pre 2003 BMW Aux Input kit

The simplest way to get an aux input for your older stereo. (Includes emulator and radio cable)

Need a 3.5mm aux cable?

Aux Input for 2003+ e46 models

Only cable is needed for ‘aux capable’ head units (~9/2002+)


Free shipping in the USA! Questions? Email us at


Your satisfaction is guaranteed with a 1 year warrantee, and we offer no hassle returns within 30 days.

Quidzel’s aux input kit works great with
1999-2005 e46 3 series (no navigation)
1997-2003 e39 5 series (no navigation; no DSP before 2002)
1999-2006 e53 x5 (no navigation; no DSP before 2002)
Please check with us regarding compatibility for other models that use I-Bus like Mini Cooper, etc.

  • Plan on 1/2 hour install on an e46.
  • Aux In Kit

    • Aux Input Cable is 1m long, allowing for installation on lower dash or glovebox area.
    • Drill 1/4″ hole and install, leaving a clean finish, or leave exposed with no drilling required. Here’s mine installed in the sunglasses cubby under the climate controls.

      Plugging 3.5mm in

    • Terminated in a 3.5mm female panel mount jack and connects to the back of your stereo.

      Female 3.5mm

    • Install connector white line UP to back of head unit marked RED. For 2003+ e46 aux cable, install connector white line DOWN to back of head unit marked ORANGE.

      17 pin connector40 pin connector
      Connector to back of head unit

    • Small module interfaces with the Radio to select CD changer input. For those who just want the module, here’s a button for buying just the CD changer emulator – $39.99

      iBus Interface module

    • Our aux input replaces your CD changer, if so equipped. Make sure that your CD changer wiring color and order match exactly to the following image, with the module’s silver stripe lined up with the brown wire. Plugging into the similar phone connector with different wiring order/polarity can damage the module!

      3 pin connector with wire color/order

    • (Note: please view the install video above to understand the installation. If this appears complex, seek the help of a professional car audio installer near you, who should be able to install this easily.)
    • Our pre-2003 aux input solution also works great for post-2003 cars that have had trouble with the factory aux input disconnecting. Our aux input will not disconnect whether you use a bluetooth dongle, a charger (use a ground loop isolator to minimize noise)

    Quidzel backs up our audio integration products with great customer service. Please contact us at

    What’s in the pre-2003 aux input kit?

    • CD changer emulator module in instruction card
    • 1m input cable

    Blog : Problem/Solved

    As some of you might guess, Quidzel is my side gig. I absolutely LOVE LOVE LOVE doing this. I love doing production, debug, development, but most of all, I LOVE getting to talk with customers. Most of the time, there’s not too much need to interact, but when questions or problems arise, I always like those opportunities to help my customers out. I think my favorite memories so far have been turning bad situations into good ones. I’ll sometimes get an email to the effect of ‘It doesn’t work; give me my money back!!’ or something like that. My response tends to go like this: “Hi! I’m Sam! I’m so sorry you are having problems, and I’m here to help or get your refund…” Sometimes, all it takes is some guidance to get things working great; other times I have to send out replacements; and sometimes, I don’t hesitate to offer a return/refund. Where the joy comes in is when I do get it working for someone, sometimes after some effort, and what was initially a hard experience turns into a rewarding experience with the organic referrals that are the best form of marketing. I’ve tried some paid marketing, but have yet to figure out how to make the needle move more than just the organic referrals that people share after finding something that worked for them. When I get an opportunity to share with others what I do outside of work, I sense that joy rising up in that I’ve been able to help others.

    If you are ever considering starting a small product manufacturing based ecommerce business (i.e. makerspace -> marketplace), as either a side venture or with the hopes of making it into something larger, I’d love to talk with you and share what has worked for me, and likewise, if you’ve got some suggestions for me on how I can serve you and/or others better, I’d love to hear from you!