BMW e46 bussines CD radio harness pinouts

[el_salvadore]

Hi lads,

I've just got my '04 320 Cd, and would like to enhance ordinary radio Business CD with active subwoofer and AUX input. I already found out how to install AUX input, but I'm still not familiar with connecting my active subwoofer to this unit. Would be helpful any picture with complete harness pinouts description of this radio,or at least description of connectors back in trunk where I suppose put my basebox, sorry to bothering but I'm searching many forums for a while but still without any sucessfull answer. I suppose it's the same low voltage output as for amplifier ,but like I said, I'm not sure where it is anyway, Thanx anyway for any helpful links, advices, documents ...