2007 Z4 3.0SI E85 Stereo Upgrade

[coljascon]

I have replaced my HU with a new pioneer. They provided me with a CP2-UNI module for the steering wheel control but it doesnt work and there is no sound. I have been told its because I have ther Carver system with the Amp in the boot and the subs. I need a K-Bus to trigger the amp which doesnt come from the module Can I get something that turns the standard remote Amp output from the HU into something the car can recognise. Otherwise I am being told to replace the Amp with an aftermarket one. Any help would be much appreciated.

[MrJoshua]

The only thing I've found so far is the Resler Interface (USB) that works with Android head-units (along with the i-Bus app and DSP licence).

Doesn't work with non-Android head units though.