your equipment manual should give you all information you need, does your 2.1 need line level input? we can assume it is full range input signal, so then it is just a matter of finding the correct interconnects....
there is one audio output port that you can try....the VCR/DVR out.....
best to ask GENELEC about your problem, they should be able to give you product support, when you contact them, give them the exact model number and serial number of your equipment...