Special case about E46 AUX input

Hello everyone, instead of having a bunch of tutorials and DIY´s about it, I can´t find none that it will be my case. I have a 330d E46 with Harman Kardon (I don't know if it´s relevant) from 5/2002. Months after buying it I had a problem with my navigation system and it was replaced for other. Few days ago I wanted to know what exactly unit I have installed so I disassembled it and saw this:

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Is it 9/2002, so it should have an AUX? I didn't see anything therefore maybe they only changed me the unit but not the wiring harness.


Also I disassembled the right part of my trunk and saw that I have a BM54 as you can watch.

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My question is easy, how can I install an auxiliary input in my car?


Thanks!


PS: sorry for my english

Attached Images

• FullSizeRender.jpg (201.3 KB)
• image3.jpg (162.7 KB)
• image4.jpg (235.4 KB)
• image2.jpg (301.6 KB)

Special case about E46 AUX input