What auxiliary inversion pack should I use for an 02 BMW 530i dsp system?

I have an 02 BMW 530i that uses dsp, is there an auxiliary inversion thing I can buy that works with a DSP SYSTEM??????What auxiliary inversion pack should I use for an 02 BMW 530i dsp system?BlitzSafe AUX Audio Input Interface 1996-04 - Cars With DSP



http://www.eagleday.com/bladforyobmw.htm…



Dice DSP kit (you also need the Dice unit to go with this one):



http://www.europeanautosource.com/produc…