What's in the box:

1 X KKmoon AUX Input Mode Cable 3.5mm Female Dash Mountable Socket for BMW E46 98-06 Audio Cable for Phone MP3 Player, Standard

Features:
Plug and play.
Work with any device that has a earphone socket.
Convert your Phone MP3 Cable to show AUX mode.
Allow AUX input on any CD or Cassette unit (non nav) and replace the CD changer.
You will gain the ability to play any audio you wish through your head-unit using this mode.

Specifications:
Color: Black AUX Input Cable & Red 3.5mm Cable
Connection Type: 3.5mm Jack
Length of Red Cable: approx. 111cm
Length of AUX Input Cable: approx. 115cm
Fitment: Fit for BMW E46 1998 to 2006
Package Size: 17 * 11 * 2cm / 6.7 * 4.3 * 0.8in
Package Weight: 56g / 2oz

Package List:
1 * AUX Input Mode Cable
1 * MP3 Cable

Note:
This is not a original item, just a replacement.