Retrofit Subwoofer on High Performance w/o Subwoofer

[IMAY2023]

So normally he have the front doors connected to C1/C9 and C3/C11 and rear doors to D3/D13 and D4/D14

No, they are not for the rear doors. They are for the rear pillar (v60/90) or back shelf on the S60/90 or top back (xc60/90). 
They only should work with High performance plus. 

When he changes from 01 Performance to 02 High Perormance he have to rewire the front doors to C4/C12 and C5/C13 to get it working.

C4/C12 and C5/C13 are for the rear doors and  C1/C9 and C3/C11 are for the front doors. 

My last idea is that this is Volvo V60 2019 Momentum Diesel Manual. And the diagrams are for V90 so its possible that for the V60 there was one more configuration that is different than in v90. 

Audio wiring is the same in general the only difference is the rear doors 90 series having two channels compared to 60 series and this difference is only with HK and B&W AUDs. 


The only logical explanation here is that you have a different software and channel config in your AUD or AUD checks all the speakers and then activates the SUB. 

If you have determined that  rear doors are connected D3/D13 and D4/D14, 
Pull them out and move them to C4/C12 and C5/C13 
Then connect the SUB to  C7/C15

Then change the config to 02 - High Performance Audio and Enable the SUB. 
After configuration is done. 
From the ECU tools tab, reset the IHU and AUD once again. 
Under the audio settings, you should have SUB level increase it. 

If still does not work, definitely your AUD does not have the correct software in it.