CAN voltage and resistance test box

Designed this box to be able to check CAN voltages and resistances on equipment with a 9 pin diagnostic connector. I work on large agriculture equipment and sometimes the diagnostic connector is not so easy to get to so you can tell what pin you are sticking your meter lead into. I designed this box that has 5 volt meters and one ohm meter. Harness connector used still lets you connect to machine while using test box in voltage mode. Parts list as follows.
https://a.co/d/6ZV127e Five pack of calibratable voltage meters.
https://a.co/d/9UIAwy5 2 pack of 4 pole double throw toggle switches (on/on)
https://a.co/d/06cJsrg 16mm latching push button lighted power switch.
https://a.co/d/iXkyLhD Ohm meter good for 0-200 ohms. (CAN circuits should be 60 ohms. 2 120 ohm resistors)
https://a.co/d/7CgOUYW 9 volt battery connector.
https://a.co/d/6VtHCnm Pass through 9 pin connector harness
https://a.co/d/cvM7nLv Screws to hold meters in and battery cover (11 per box needed)
https://a.co/d/7A7gTr2 Screws to hold box top and bottom together.
Harness pin out with wire color is as follows.
Pin A orange wire (ground)
Pin B yellow wire (battery voltage)
Pin C black wire (VEH CAN high)
Pin D red wire (VEH CAN low)
Pin H blue wire (IMP CAN high)
Pin J Purple wire (IMP CAN low)
I wired up the 5 volt meters red wires and only the center meter red and white wires to the yellow wire in harness (white wires on meters are sensing). Black wires on meter go to orange wire in harness. Picture included of schematic on how to wire switches. Just make sure to turn switches to align with markings on box.