Ammeter to Voltmeter...who does it?

37EA55B6-B2C9-4D71-8E7A-D562B301D613.jpeg 7462423B-3566-4A9B-93AC-B5634BF2F046.jpeg I just installed a Sunpro 1.5” voltmeter. So satisfying, it’s virtually plug and play once you disassemble it.

I’m hoping to get some feedback on my wiring. I will clean it up and use better connectors, these are just temporary, but are these good places to connect the voltmeter power and ground?