Quote:
If you can't find a commercial one, you of all people should have the resources at your disposal to build a line-level resistance mixer.

Yes, in fact we have some mixers at Alesis which can run on 12V, however in this case I'm looking for something packaged appropriately for the application. The ones I've seen bolt into the DIN bays in the trunk where the DVD or CD Changer would normally go, and have rotary faders to set the levels. I guess I could hack something together but I don't have much time at the moment

Rob