Oh I am sorry I misread your post. yes I know the JL audio is what I really want to get but because I have what I have, I was hoping to utilize it for the time being. If too much work will be involve then I will just wait and go with JL audio. Again thanks for everyones help and apologize for my misunderstanding . Thanks

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2004 BMW X5 >4.4i Retrofit 4.8 Rear Bumper, Extended Flares, 4.8 exhaust ,Bull guard, Blacknight gauge cluster.
2009 BMW X5 >35D -Stage 2 DUDMD tune, full delete ATM catted DP, Midpipes, EGRracepipe, swirlflaps.
Sutphin TCU v3.0 Tune *Upgrade ATM FMIC
2005 Audi A4 B6 GIAC Stage 5
*to be installed