Experts will hopefully know this. My E86 has the boggo hifi system which does not have the speakers in the doors. It merely has the “fake?” grills (in black). I have purchased a set of BMW door speakers from the better OEM hifi and these just fit in the holes. However the grills for these are grey. The question is can I use my existing black grills please? Or do I need to find a new set of black…..