V90/XC90/S90 HK AUD .VBF Files

[IMAY2023]

The fault codes are odd. I have a V90 and could add the mids on the rear door. But I understand they are wired in parallel with the tweeters. I have the tweeters wired to the AUD, so the AUD should not be sending a DTC for open circuits for that channel/wire pair.

So all in all, knowing what the car considers to be speakers 6 & 8 would be nice.

What is the year of your car and what is the year of replaced AUD. The wiring is different.  
If your car and the replaced AUD's year before 2023. 

D6  =  Left_Rear_Mid_Tweet_neg 
D18 = Left_Rear_Mid_Tweet_pos

D8 =   Right_Rear_Mid_Tweet_neg
D20 = Right_Rear_Mid_Tweet_pos

Ooo, are you suggesting the DTC's referring to speakers "6" and "8" are referencing the D6 and D8 negative wires?

My car is a 2018 V90CC. My donor AUD is from a 2019 XC60. I have flashed it to change its configuration to a V/XC90. Going from HP to HK, i drew new wires to the rear doors to add the tweeters, with the woofers already being there. As for the front doors, I added new wires as well to put the tweeter and mids in parallel on their own channel, whereas before they were in parallel with the woofer.

Not sure from where you got the negative for the additional channels but you most get the negative from D6, D8, D10  (Right_Front_Mid_Tweet_neg)  and D1  (Left_Front_Mid_Tweet_neg).  

You are reducing the resistance (impedance) of the channel by using the same negative!  Audio signals of an amp. are not like electricity that you can get the ground where ever you want.

Oh, sorry, no I wired them to their respective negative terminals on the AUD.

I was asking if you think that the DTC referring to speaker "6" and speaker "8" is a reference to negative terminal numbering on the D connector of the AUD? In other words, when the DTC refers to speaker "6" it is talking about the left_rear_mid_tweet because that speaker connects at D6.

If that is the case, why am I getting the DTCs since I have left rear tweeter and right rear tweeter wired on those connectors, and as far I know on the HK system for the V/XC90 there should not be a mid-speaker on the rear door.

You need to be more specific with the DTC you are getting, there should be 2 more characters at the end of it. Check this out!  
If you already connected the speakers to their respective pins and still getting the DTCs after clearing them, I bet you have a short in your wiring or you connected the negative pin to the positive of the speaker.  

If you are interested I have a s/v/xc 90 series gen1 B&W AUD and a B&W SUB for sale.