Audiotomb, It sounds like your particular Triplanar is one that came with the optional outboard box that presents female RCA jacks for use with your choice of IC. Correct? If so, and for minimal expenditure, I personally would remove the afferent wiring from the box, by de-soldering or just clip it. Then solder good quality wires direct to the bare ends of the remaining tonearm wire, to any termination you desire. This is if you have soldering skills or know someone who is competent to do it. The expensive solution is to do as Swampy suggests; re-wire the arm with a single set of wires that goes all the way from cartridge to phono stage. Triplanar can do that for you.