Hi Sur, ah done and soldered, and wrapped wi tape, all is good, after I found an innocent looking and dry and clean but defective connector block in the engine bay.
EDIT
To say that while I worked at Wrightbus, I was intrigued to notice that the wires to the various roof mounted speakers, were soldered to the speakers, but these were the only wires that were soldered! And with the vast quantity of highly flammable cleaning and priming solutions used Willy nilly prior to applying adhesive, therefore "hot" work was strictly prohibited. But, hey, solder those wires. With a very cute Milwaulki (Spelling?) batt powered soldering iron.
I asked why? But nobody had an answer.