356 Porsche Technical Articles - Installing a wiring All wire sizes, colors and terminal ends are exact to the original factory specs. Its is a very time consuming process, but well worth the wait. Another great assest of YnZ, besides the beautiful harnesses, is the history and intimate knowledge of the 356 wiring variations. wiring harness porsche 356 | eBay www›Search›wiring harness porsche 356wiring harness Porsche 356 B/T6, C. Brand New. +$95 shipping. Porsche 356 front wiring harness nice used condition 64461200106 . Pre-Owned. $75. Buy It Now +$14 shipping. Porsche 356 front wiring harness nice used condition 64461200106 See more like this. Porsche 356 Pre A 1953 Partial Wiring Harness #2.