Hello! I have 2011 Scion tC and as many of you know the 2nd gen has only one power socket. So I’ve bought two extras from Amazon and already made holes where they’ll be going but wiring it up has been a bit complicated so far. My plan is to tap into the wires from the original power socket and have that power the two new ones I’ve installed. But the connector to this original socket has two wires coming in: one being yellow and the other being a white wire with a black stripe on it. I don’t have access to a multimeter at the moment and was wondering if anyone happens to know which wire is which. Thanks to all responses in advance!

 

just trace contacts and where they go. One wire will go to surrounding sides. One wire will go to tip.

Wire up replacement sockets same way.