Cable Assembly vs. Wire Harness: What’s the Difference? Cable Assemblies and Wire Harnesses Are Often Confused For Being The Same thing.Cable Assembly vs. Wire HarnessThe Wire HarnessThe Cable AssemblyThe confusion is understandable since many professionals use the terms interchangeably and the products themselves have very similar basic functions. Yet these products are very different from each other, as is their purpose, which means definitions need to be made in order to help people get the products they need. This is a brief explanation of cable assembly vs. wire harness, and how each product is used out in the world.See more on meridiancableassemblies fuse box wiring harness | eBay 2008-2014 Subaru Impreza WRX STI Engine Bay Fuse Box Wiring Harness Alternator See more like this. BMW Isetta 300 Wiring harness Dash To Body With part Of Fuse Box. Pre-Owned. $169. Guaranteed by Mon, Jul. 29. Was: Previous Price $199.