Description
P.I.E BMW-AUX – Auxiliary Input Adapter for BMW & Mini (3+6 Pin CD Changer Port)
Add a clean auxiliary input to your factory BMW or Mini radio with the P.I.E BMW-AUX adapter.
This module converts the CD changer port on the back of your OEM Radio into a stereo RCA aux input, so you can connect a Bluetooth receiver, smartphone, satellite radio, or any portable music player directly — no FM modulator, no noise, no cutting wires.
The BMW-AUX plugs into the factory 3-pin and 6-pin CD changer cables in the trunk or CD changer location. Once installed, your radio treats the adapter like a CD changer and allows you to play external audio through the factory sound system with full OEM quality. This is an excellent solution for customers who want to keep the original dash and radio, but still add a modern audio source.
✅ Features
Adds true auxiliary input to select BMW and Mini factory Radios
Uses factory 3-pin and 6-pin CD changer connectors – no splicing
Provides stereo RCA input for any external audio device
Maintains factory radio, steering wheel controls, and vehicle wiring
Much better sound than FM transmitters or cassette adapters
Simple plug-and-play installation at the CD changer location
Works even if the car did not come with a CD changer
Note: The adapter takes the place of the factory CD changer. The CD changer and BMW-AUX cannot be used at the same time.
🔧 How It Installs
Locate the factory CD changer wiring in the trunk or changer location (3-pin + 6-pin BMW cables).
Unplug the CD changer (if present).
Plug the BMW-AUX module into the 3-pin and 6-pin connectors.
Mount the module securely using the built-in flanges.
Route the RCA cables toward the front of the car (center console, glove box, or dash).
Connect your Bluetooth receiver, phone, or other aux device to the RCA input.
Select the CD changer / CD mode on the radio to listen to your external source.
🚗 Vehicle Compatibility
The P.I.E BMW-AUX works with select BMW and Mini factory Radios that have CD changer controls and 3+6 pin changer cables. Typical applications include:
| Make | Model | Years | Notes |
|---|---|---|---|
| BMW | 3-Series | 1998–2006 | With factory CD changer controls and 3+6 pin changer cable |
| BMW | 5-Series | 1995–2003 | OEM radio with CD changer option |
| BMW | X5 | 2000–2006 | CD changer wiring in trunk |
| Mini | Cooper | 2002–2006 | Factory Mini radio with CD changer capability |
Important fitment note:
Radio must support a CD changer and use the round 3-pin + 6-pin BMW changer connectors.
Vehicles with MOST fiber-optic systems (newer BMWs) are not compatible.
📊 Technical Details
| Feature | Specification |
|---|---|
| Model | BMW-AUX (P.I.E / Precision Interface Electronics) |
| Type | Auxiliary Input Adapter for BMW / Mini |
| Input | Stereo RCA female (L/R) |
| Radio Connection | BMW 3-pin + 6-pin CD changer cables |
| Location | Trunk / CD changer location |
| Compatibility | Selected 1996–2006 BMW & 2002–up Mini with CD changer |
| CD Changer Support | Replaces factory changer; cannot use both simultaneously |
| Condition | New |
| Warranty | Typically 1 year |
🎯 Typical Uses
Add a Bluetooth receiver to BMW & Mini factory radios
Connect satellite radio, MP3 player, or smartphone
Keep the original radio and dash while adding modern audio input
Better sound quality than FM transmitters or cassette adapters
🔗 Internal & External Links
Internal (on your site):
Link to BMW / Mini category
https://oemautosound.com/product-category/bmw/Link to your Bluetooth modules (ISFM2351, iS32, etc.)
https://oemautosound.com/product-category/bluetooth-kits/

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