I've just taken delivery of a 2022 XC40 Inscription, with the non Harman Kardon Premium sound system, marketed as the High Performance audio system. I've been able to find some great detail on the HK system, including amplifier and sub-woofer location, as well as various cable diagrams and colours, but I'm seeking similar info on the non HK system. Can anyone tell me whether this looks like the amplifier under the drivers seat of a RHD XC40? I'd like to add a small under-seat sub-woofer and am trying to work out what speaker/line cables I have access to and where in the XC40, as well as sources of switched and continuous power. My wihful thinking is that's it's all there under the seat already. Any info, experience, opinion, etc is welcome. Thanks