HP to HK Sound: Door Wires

[Lukas]

hi.  I have an amplifier that I bought from a Volvo xc40, amplifier number 32265284AA, on which 5 channels worked.  front door, rear door, center speaker.  after installation only the front door goes in my car.  nothing more.  028 configuration for premium sound is enabled via orbit, I don't understand why it doesn't work on my car when the amplifier has the 5 channels in it.  I can't move anymore.  I've been doing just that for a month and I've already tried everything.  also 451 all options also 466 configuration all options.  nothing no response.  still only the front speaker.  the door.