I think the subwoofer will wait for a few reasons. I'm sure I've never listened to a system with a good one because they always sound boomy/muddy to me. Other thing is this car is something of a quandary. I typically go for lightest weight possible within reason. Pic below is of my 84 Targa with the system I'm reinstalling; towel is covering crossovers mounted on a board. Given I have to make speaker boxes and need to keep this car nice, a sub would only be possible if I found a rear deck I could install the rear speakers in to delete the what I think will be heavy MDF boxes.
