How to add AFTERMARKET Subwoofers to ANY BMW Harmon Kardon

Hi!
In this video, we will be showing you how to add in aftermarket subwoofers to your existing BMW Harmon Kardon system. Fairly easy even for us as a first-timer. Links to the diagram and parts are below!

Link to the Diagram: https://i.imgur.com/yGJixk4.png

Halfords Link for the Amp Wiring kit : https://www.halfords.com/technology/c...

Halfords Link for the Line OutPut converter : https://www.halfords.com/technology/c...

Many more videos will be uploaded
Remember to Like, Share, and SUBSCRIBE! Thanks!

We started this YouTube channel to help people all around the world with guides and tips. Some are useful and some are just for us to keep as a journal for our modifications.
We may not have the best content or the best editing skills, but rest assured, we will definitely give our best.