Hi all, brand new to this forum so i hope you all can help me out. I just picked up an octapad 8 from an estate auction..it does work after sitting in an attice for a few years, however i cant figure out if i can use a kick pedal on this. if so i do i go about it..ive tried the inputs and just about everything else but can seem to get any response from external pads (inputs)..what am i doing wrong..i currently have a spd8. so i now my pedal works and so do my other pads..im using the RM iv drum machine thru mackie tracktion. Thanks any and all help is greatly appreciated