Yes OF, apparently DSP was a separate factory option (at least in my 2002/2003 build year) and factory NAV could be ordered separately.

I am not sure that the Eonon GA6166 is able to be integrated into the on board DSP system but their advertising copy says that it can here:





Mike

__________________

Mike
Dallas, TX & Appleton, WI
2003 E53 4.4i Pearl Beige
2003 E46 330Xi Monaco Blue
2007 E90 335Xi Black Sapphire Metallic
2011 F25 X3 28i Black Sapphire Metallic