I just installed the oem aux cable and it's working great!

Now wondering if I should get the bluetooth retrofit kit. With bluetooth and aux I should be ok for a while.

Next to find out if rearview camera can be set up using the oem nav screen!

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2003 X5 4.6is Estoril Blue, acquired March 2018
2013 128i M Sport 6 MT Space Grey daily driver
2010 535xi 6 MT Barbera Red