Need help with Infiniti Basslink install... ?

[sweetsilver]

I bought an Infiniti Basslink for my car just to give it a little more thump. I also bought an "Easy install kit" off of Ebay that is supposed to show you how to install the basslink into a BMW. (You even get some power and ground wire...Romex house wire! )
In the instructions it tells me what wires to splice into if I have an E90 style plug on my factory amp (see pic below) which it looks like the picture in the instructions for an E90 plug. The problems is that the colored wires the instructions say to use are not in the bundle of wires?

Does anyone know the color of the wires running to the factory subs in a 2004 330Ci with the Harmon Kardon sound system?

[da_bull]

If it were mine, I'd locate the wires at the sub and splice into there. That way you know exactly which ones are the sub wires. Or find the sub and look at the colors going into it, then you can go to that series of wires you pictured above.