I just finished installing rear speakers DIY style to the rear shelve. I however do not know how or where to connect the speakers to. I believe some cars came with a plug at or near the role bar, but my car does not seem to have such a plug. I've looked behind and around the role bar both left and right. (My car is a RH). At the left side there is a wire going to some sensor I believe to be for the roof. This was the only plug I could find.
2001 Boxster S with Haes 4x40w amp in frunk. I only have the 2 dash spkrs currently.
I attach a photo of the shelve, and the back of my radio, CDR 220.
Any advice as to where to connect the rear spkr wires to?