Does anyone know where I would go to buy a matching male/female connector pair the same as the OEM ones? In particular I would like the various connectors that go to the head unit. Mouser.com has a billion connectors, and I don't know if they even have those.

 

You can get the main 24pin head unit harness from Metra. Don't know where to go for the rest.

Any particular thing you want or are trying to do?