Here's one completed module being tested. It passed!
Testing the Lock Module
At this point it's just soldering on a few wires (or a bunch of wires and components in the case of the nearly-bare PCB). And that's pretty boring to show. Note the orientation of the 1000uF capacitors if you change them - the label on the OE pieces points towards the positive terminal and pretty much every other one I've ordered points towards negative. Fast forward and it's time to test it! I rigged up a few wires to connect it to a power supply.
And here you can see it in action. Watch the relays close and open upon pressing the remote button.
And here it is installed! Now that the power wire (and only one now!) has a fuse, the circuit breaker can be removed, which makes a nice place for the remote module to sit.