Solar Installation question

[AtomicNo13]

Happy Memorial day!

I am engineering my solar charging system for my 1991 34' Excella.
So far I have decided on twin Kyocera 140 watt (9 amp) panels.

Here is my question.....
Under the front couch I find a 10 ga. single conductor wire marked SC... I assume this is the prewire to the roof for the panels, and the schematic I have indicates it as being such.

OK with that being found, where on the roof is the other end of this wire? I can't seem to locate it!

[bangzoom]

Happy md to you too.
I'm not familiar with all of the pre-wire configurations but on my 2007, the pre-wire ran from the battery area to the fridge area where it can easily be routed up through the fridge roof vent. At the adv ice of a.m. Solar, i replaced the 10 ga. With 8 ga..