Great, thanks a million, now all I've got to do is figure out how to connect without going to the expense of buying the plugs!

Before I posted, I went through my junk bin and found five different types of non standard multi pin plugs: A history of the evolution of car stereo fittings!

I've also got an MG/Rover HU showing all eight pins and I was hoping some of those spare pins were amp outs, It doesn't say who made it.