Apologies if this has been covered. I am getting some speakers for the 1991 Jap cruiser for christmas and I read that the door speakers are 4 inch yet on investigation they might be 5.25 inch? My car is in Edinburgh and I am in London so I can't just measure them unfortunately. I have disconnected the dash speakers and the speakers in the boot roof previously. I remember the door speakers having 3 mounting points where all the speakers I am seeing are 4. What do I do?! Thanks in advance!