wire LED strip lights to topper fuse box and harness kit

Is it possible to wire a switch and LED strip lights for inside a topper to my leer topper fuse box and harness kit? I have a fuse box inside the topper that is connected to the battery for a 12v dome light and there is an aux harness that isn't currently in use. Can I hook up a 12v switch and LED strip light system to the extra harness?

Thanks!
Z

 

Did that with my snug top. Have the strips under the frame rails on the bed. Saw the open plug and checked leads. As expected since box comes off battery it was live all the time so I just put a switch in.

 

What did you need to hook the LED lights to the harness?

 

My box had a plug opening with an empty plug. Was too lazy at time to use the proper pin insert connectors so I just soldered the leads in. Of course if I remove the topper I will have to do something