In the old days car audio retail prices were kept high by having to source anything decent from a UK dealer/installer through BBG ie. you couldn't get Focal, Dynaudio, Morel, JL, Rockford Fosgate etc. except by buying through a dealer in turn buying through the distributor, I think BBG sold out to Celsus so no doubt it's the same deal still. Again years ago but it caused the occasional rebellion when a dealer would shortcut this main distributor loop, as with RE subs back in the noughties but generally these moments are squeezed out by the bigger monopoly... it's like trying to buy tickets at your local music venue when someone big comes to town, you can only get them through Ticketmaster etc.