I have the amplifier for the rear speakers and sub. I'm not sure this is useful to anyone, but I certainly don't need it. I can take the Other end of the plug out of my car with about 6" of wire if you want that.
PN 996.645.341.00
Its $100 on ebay, so I'll do $75 shipped anywhere in the states. You can also send me an offer.
Thanks!