oh no
thanks tech
Manual says that it is compatible with 1 Series, 3 Series and X1
can't imagine why 5 series is not on the list
http://www.focal.com/en/dedicated-dr...050750531.html
may be first stage, cut woofer & install some compatible stuff like ifbmw-s ( rock & roll is not my cup of tea)
then second stage amp for woofer ( any cheap & simple installed amp in the market recommended?)