Good morning, I installed the parallelator on the off-road, to connect two batteries: one ignition and the other auxiliary, as instructed. But the blue light always stays on. I used the wiring that came with a switch to use the batteries together, but nothing changed. It seems that the parallel never separates, but leave the two batteries always connected, as if it does not work! Which procedure do you recommend to verify correct operation or failure? Thanks, Agostino.