I am looking for a pair of the M-audio subs .. if it is just 10" subs I can do that myself.. i mean make a box and all ... just looking for a OEM "M-Audio" subs .. is that waht you have ??
not sure what you are saying ..
alternatively I may see what I can do if I start with the DSP sub box that is currently in the car AND also ON the shelf in the garage too (since I have 2of them)

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BUT if there is a set of the twin 10" BMW OEM subs to be had I rahter start with that .. and then maybe if needed trade out the drivers ......
thanks .... let me know ....