NAIM 4pin to RCA - mono

Hi,

Am looking to build a cable for NAIM NAP 150 that I plan to use it to drive center channel. The ones that are available are DIN to 2 RCA cables. Am thinking Mogami 2549 and Amphenol RCA but not finding the 4 pin DIN that is for NAIM. Anyone built one and where to buy. Also should I connect positives in 4pin together? The center channel is Bowers which has two binding posts so will drive 50W 2 channels to HF and LF posts. Thoughts?