Door Lock Switch Wiring Question

I am looking for a single wire that when either 12v positive or negative is applied will cause the doors to lock (2008)? I removed the drivers door console and looked at the wiring. At the risk of letting the smoke out of something…I gave up.

I am considering another option for automatic door locking. If you know where this wire is located…please let me know! I could also use a wiring diagram if anyone has one available. Thanks!