WIRING HARNESS ASSEMBLY HAVING 3-DIMENSIONAL SLEEVE GUIDE, AND METHOD OF MAKING SAME

An electrical wiring harness assembly includes a wiring harness formed by bundled electrical lines, and including breakouts diverging from a main trunk. A sleeve guide encloses a compound junction formed by the main trunk and the breakouts and includes a plurality of breakout guide tubes receiving the plurality of breakouts and fixing outgoing trajectories of the plurality of breakouts from the main trunk in a 3-dimensional pattern where the outgoing trajectories all differ, relative to the center axis of the sleeve guide, in at least one of a longitudinal, a circumferential, or an angular aspect.