Hello, I’m new here and I have a few questions for you. I have a Subaru Legacy built in 1995, which runs on LPG. Now I wanted to expand the old boxes and install a decent sound system (should still be ned so expensive). Unfortunately, the Legacy only has 2 boxes in the front. Can it still be that in the rear doors the wiring is already for further boxes? And how do you get the old membranes out of the door? idung? I tried to get this plastic grille but I think the grille is firmly attached to the panel. Second question, I have my gastank where the spare wheel used to be and now I might want to place the subwoofer in the trunk. Is that possible? Or are the pressure waves so dangerous that the tank impludes me? What kind of speakers can I install, that is, what size? And would it be advisable to relocate the entire wiring? Must I have to And the last question, it would be possible for me to replace only the 2 loudspeakers that provide a decent sound and some good bass? If I forgot to mention anything, just tell me. So, now I hope you can help me out.