I need to send a mono microphone signal from my Behringer UM2 to my Nikon D3200 mic input which I understand is stereo. What is the appropriate connections needed to do this? The UM2 has dual mono RCA outputs as well as a mono headphone monitor output. Would it be as simple as using a dual rca to stereo jack connection? Or will this cause a) only a mono signal to be passed to the stereo input, and b) signal processing issues going from the UM2 powered mixer into the 3.5mm unbalanced stereo jack of the D3200? Confused about the best route. One alternative I have thought of is to use a mono RCA to mono jack wire from the left output of the UM2 and connect it to the jack using a mono to stereo adapter. Will this provide signal from the mono source to both stereo channels in the D3200? Much thanks!