Hello there,
Under the front doors and under the seat, I applied the "ifbmw" series Focal.
I'm installing 8 channels of "pp86dsp match" amp and Q8 sub on the trunk.
Base stereo systems, a connection from the main unit before going to the door from there to the under seat subs.
Do you need to separate if that's true?
Thanks in advance.
F20 120i 2015LCI
https://www.focal.com/en/car-audio/c...l-bmwr/ifbmw-s
https://www.focal.com/en/car-audio/c...wr/ifbmw-subv2
https://www.audiotec-fischer.de/en/m...fiers/pp-86dsp