OK Dean, using the modules, locate the connectors in the luggage area loom.You will find that the voice module will not be fully populated.
Install the modules where required on the Kaiser panel. This is the large sliver coloured plate which is bolted to the side if the luggage panel. I'll see if I can find some helpful pictures.
Disconnect the D2B connector from the NAV unit and plug it into the extra portion of D2B cable. Connect D2B to each module, there is no specific order.
Mount the CDC in the rack and make sure each module has a power cable and D2B attached.