Not for the black plug. The pins use a different lock to hold them in the housing. The ones in the black plug have a metal tab. You can get to the ones on one layer from the outside of the plug. The ones on the other row require that you stick a probe in the hole between the sockets.
I don't know if it would be possible to change the wires. I think you'd have to add on to them.
Have you tried to find an old head unit to use the plug from it?