Note: There are many host models compatible with BMW CD, which are quite complex. Some of them cannot be switched to AUX mode. You need to check whether the CD host has AUX function before buying, if the CD host does not have AUX function, we do not recommend you to buy. In order to avoid your purchase mistakes, we recommend that you consult us before purchasing. If you are unsure of your model or technical problem, you can contact us at any time.

Specification:
Bluetooth name: JieRui-BT 5908
Bluetooth version: 5.0 (compatible with the following versions)
Product voltage: 5-12V
Plug: 10-pin interface big plug

Compatibility:
Compatible with BMW (E46): 320i, 320ci, 320cic, 323i, 323ci, 323cic, 325i, 325ci, 325cic, 328i, 328ci, 328cic, 330i, 330ci, 330cic & M3 (Coupe, Sedan & Convertible) 09/2002-2006.
Note: Will work ONLY Compatible with BMW E46 3 Series Business CD head units since 09/2002 or newer. The E46 Business CD head unit manufactured time must be 09/2002 or newer.

Installation method:
The frist step,
Remove the CD host player, the large plug into the plug in the back of the corresponding audio interface. This is a Bluetooth cable with a large plug, which can be directly inserted into the corresponding large plug interface of the original car's CD host.
The second step,
Open the phone Bluetooth, search bluetooth click on the link.
Third step,
The car CD to switch to AUX mode, you can phone all the sound from the car sound.

Package included: 1 x Music Streaming Bluetooth Adapter Audio Aux Cable Big Plug Compatible with BMW E46 10 pin Socket 320 325 323 328 330 M3 3-Series 2002-2006 Busines CD