limo,

The volume of the OEM box is larger and it fits perfectly in place. I do not recommend connecting to the OEM amp. Wire the new sub to the Alpine amp.

I guess OEM box will not give any ratles at all. Just make sure not to leave any space between the new wood face and the original box.

If you did not like it, you still have the wood box. Simple swap!

__________________
BMW 1M 2012 - Current
Jeep Grand Cherokee Limited 2011 - Current
BMW E93 330i Convertible 2009 - Sold
BMW E46 320i 2004 - Sold
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BMW 740i 1996 - Sold