Mounted the BMW i8 Soundbooster

Some time ago, I wrote some blog entries about the Sounbooster and Soundaktor.
Read more about it here:
— Download unlocked Soundaktor firmwares here!
— Small demonstration of the Soundbooster retrofit
— Cracking the Soundaktor firmware checksum: We did it!
— Investigating Soundaktor firmware part 2!
— Investigating soundaktor firmware

A few months ago, I got a BMW i8 Soundbooster from Ebay (BMW part number 8610987). The first question I got from a friend was: "From a BMW? How could that possibly be compatible with a VAG car?". BMW and VAG both use Eberspacher Active Sound devices as external soundaktor. And so does Maserati, and a couple of other brands(read much more about this on my friend Dark 's blog: . The BMW one was the cheapest I could find, and some time later I was able to test it succesfully.

However… it took a bit longer to mount it underneath the car!

There were a lot of challenges here. The device is fairly heavy, and has an impractical shape. My brother and I got underneath the car to check out where to fit it. Some people (and aftermarket soundaktor installers) are cutting holes in the bottom of their car, but I didn't want to do that. We found that underneath the panel on the bottom right side of the Leon rear is a lot of space. On the Cupra, this is where the 2nd exhaust muffer is placed, so there should be plenty of space for the soundaktor. However, the soundaktor mounting points weren't exactly in line with the exhaust mounting points on the Leon, so some metalwork was needed. And that was another challenge, because I'm no metalworker and don't have the tools, knowledge or skills to get it done. A local shop owner was willing to help me out here, so he started working on it.

He was able to mount the soundbooster with a piece with the original mount in 2 places, and fabricated a bracket to be able to reach an other mounting point.

He cut off a bit of the pipe and in the end the test fitting looked like this:

After this, he took of a slight bit of the pipe to make it a bit nicer, and then we closed it up after pulling the speaker cable to the trunk.

Currently, it's running some Audi firmware that has pretty mild sounds. I'm testing other firmwares this week.
I currently have the following for the Gen 2 control module:
— FL_4G0907160B__0007.odx (Audi A6)
— FL_565907160A__0005.odx (Skoda Kodiak)
— FL_8W0907160___0001.odx (Audi A4)

And the following for the Gen 2.5 control module (which I don't have yet):
— FL_4K0907160A__0002.odx (Audi A6/A7)
— FL_4K0907160B__0001.odx (Audi A6)
— FL_4M0907160A__0002.odx (Audi Q7)
— FL_4M8907160A__0002.odx (Audi Q8)
— FL_80A907160A__0002.odx (Audi SQ5)

If you have any firmwares that I don't yet have, let me know! Thanks!