Ok, crawled around and think I found that wire, only obvious one. Breather valves are hard to find, seems like everyone is using a Toyota one 90930-03136. Wont have it for silverton, but will order Monday. That front one routed to the engine bay should be high enough.....then again, some of my worst water events have been in Silverton!

Need more wire stuff and my silicon expired 7 years ago, yikes.