Hi guys

I am trying to locate a wiring diagram for an 06 E53 with nav.

I have an aftermarket radio and having trouble wiring the power and earth connections correctly.

I have the 2 small connections, one blue and one white.

I need the constant power for memory, switched power, and ground wires please. I have tested the ports with my multimeter, but the wires I have used give me switched power only unless I ground to the body, then I get constant power even without the key......

Thanks in advance guys