Hi all, I have a mostly stock and very nice condition, low mileage 240Z. I drive her very frequently these days, so I have made some modifications to make daily driving more enjoyable/bearable. I started with new struts and springs (kept the originals if I sell to someone who wants the old parts). The project I am working on right now is setting up the stereo to be reasonably nice but also sound better and accept an aux-in from my ipod. I have ordered the "retrosound" head unit from Crutchfield so I can have a modern tuner and aux-in but preserving most of the stock look (I will keep the old parts as well) I removed the interior rear quarter panels and to my surprise there is only one speaker mount and speaker (on the left side). I knew sound was only coming from the left side but I assumed that the right side speaker was dead, not completely gone. I don't see any lead wires coming from the wiring harness and there aren't and clues that would lead me to believe that there was ever a speaker bracket attached there. Is it the normal stock setup to have only one speaker for a 73 240Z? seems like an odd thing...Was a 2 speaker setup optional? Or did it vary by model year? Currently, I plan to get a bracket off another car and install a second speaker , running the speaker wire from the head unit to the speaker along the normal route. I know about the speaker box for 6x9 speakers but I want to keep the look of the car as stock as possible.