Looking for 5 volt on MVS cab

Trying to install a JROK and I'm looking for a clean 5 volt, but can't seem to find an open one.

Any insight would be appreciated.

edit;

To clarify; following the 5 volt and ground from the top of the wiring harness down it goes to a molex which hooks into the power supply (another molex). So straight from the PSU to the board on 5v and ground. How do I tap that to run 5v to the JROK, remove the 5v and ground pins from the wiring harness and go that way? Aren't those used for something else? Splice the wire?

Splice it to the harness or add it to the PSU. If I can't add a clean one I splice/solder then heatshrink it.

So stripping some of the wire and soldering the leads into the 5v will supply power for the JROK AND whatever else is using that 5v?

That's going to supply 5v each to two different components (whatever the board uses it for and the JROK) on one 5v wire?