Location of Bose amplifier on Renault Scenic IV

[sj29fr]

Hello,
I would like to reduce the output level of my Bose system because the volume is already too loud on levels 1 to 3.
I’ve also noticed that the vehicle speed affects the volume too much when it’s set low.
My idea is to attenuate the signal by adding a passive attenuator.
Could someone help me identify where the amplifier is located?
I assume it’s in the dashboard, possibly near the glovebox.
It can also be in the right wing in the trunk with the subwoofer.
But I’d like a confirmation.

Hello,
I think that a simple resistor divider between the RLINK2 and the Bose amplifier would help. All 4 channels has to be modified.
I don't know which attenuation we shall set, but I would try with -3dB or -6dB.

                              R1                R2
out+ RLINK2 ----/\/\/\-----+-----/\/\/\----> in+ BOSE amp
                           |
                        GND

                             R1                R2
out- RLINK2 ----/\/\/\-----+-----/\/\/\----> in- BOSE amp
                           |
                        GND

-3dB: R1=3.3K, R2=8.2K (ratio 0.713)
-6dB: R1=R2=10K (ratio 0.5)

But now I need to find the location for this amplifier in the dashboard in my Scenic 4.
Who can confirm if it is accessible above the glovebox?

Originally posted by @sj29fr in #813

[sj29fr]

My subwoofer is alone in the right wing.
I don't see the amplifier.

[sj29fr]

It seems to be near the glovebox. 1917 is the amplifier and 261 is the Rlink2, 2152 is the TCU.