Thanks to Valery for the translation of the Professional Car Audio Upgrade. He is so kind and has translated the whole DIY for us. I’m still confused a little bit about some parts of this DIY because I don’t have much knowledge about fiberglass, but I think the result is awesome! Now, you can understand the procedure easily. Thanks again Valery.
Disclaimer: Use this info at your own risk!! I’m not responsible if this didn’t work for you :-).
Hi everyone, I’m 19 and I own a E36 325TDS with a lot of extra parts for it so that I modify inside and out a little bit. I installed a Oxygen Alium 5, 13cm diameter Kit and a 20cm Speaker Oxy Alium 203.
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb01.jpg)
First, I removed the vinyl, and then cut the panel
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb02.jpg)
Next, I cut a piece of MDF (Medium Density Foam) of 19mm thick
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb03.jpg)
A little bit of fiber to maintain the MDF. Check out the door:
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb04.jpg)
Here is what I used, you’ll tell me “It is not wow” but I couldn’t afford better, these speakers are really good for the price.
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb05.jpg)
Setting the canvas, this is not some cheap fabric :p this is lycra 😉 I know I know 😉 back to work, major advantage of the lycra is its scalability.
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb06.jpg)
Application of resin (What is that? Ken can you help ?):
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb07.jpg)
Once the resin is dry on the fabric, cut a piece of glass fiber as so:
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb08.jpg)
What you get once resin applied:
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb09.jpg)
Now the most annoying part of the project 🙁 smooth all of it :s: I hate doing it lol Here is what you get when installed:
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb10.jpg)
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb11.jpg)
The installation progressed a bit, I replaced my previous kit by a MAC Audio Diamonds 2.13Here are the pics 🙂
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb12.jpg)
So, It’s been a while since I’ve done it, I will soon replace them by a Focal Utopia 136W kit.
My latest project:
Here is the idea, as you might remember I’ve installed new speakers in my doors, I then realized that I couldn’t open my glovebox anymore lol Anyway, I decided to fit a subwoofer instead of the glovebox.The subwoofer is a Focal 27A, here we go, pictures !
First, build the box in medium 19mm, I reached a volume of 15L. I had to take out the fan system to gain space and pack everything to fit it in.
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb13.jpg)
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb14.jpg)
Fixing plate to hold it
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb15.jpg)
What It looks like after the Subwoofer is inserted.:
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb16.jpg)
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb17.jpg)
Application of the canvas to get a good shape.
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb18.jpg)
I then used foil to unmould the shape I got, made of fiber.
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb19.jpg)
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb20.jpg)
What you get with 3 layers of fiber. Where I am right now.
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb21.jpg)
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb22.jpg)
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb23.jpg)
Smooth the whole thing and black vinyl, with golden screws. Check out the result
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb24.jpg)
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb25.jpg)
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb26.jpg)
![](https://www.bmwe36blog.com/images/photos/upgrade-e36-audio-system/thumb27.jpg)
Are you looking for more do it yourself procedures (DIY) ? I recommend the Bentley BMW 3 series service manual for you. I got it and I think it’s a gold mine for us -BMW E36 Owners-. If you didn’t grab your copy yet, get it right now! I’m sure you’ll find this book worth every penny you’ve paid for. Get the Bentley BMW 3 series service manual
BMW E36 Blog: The ultimate BMW E36 information source.