Autotek 7100 amplifier (Built in the USA!). Probably one of the baddest amps in the late 80's. It has not been in a car in at least 10 years, and I would like to use it again. It has this 2X3 plug that seems familiar, but I can't find one. I have lost the male side.
You may have to do a little carving to get the polarized pin holder part to mesh.
Short of that, the female connectors should fit their counterparts and with a little effort an insulated holder for them could be made to mate with the male pin holder.