cluster gauge good ignition source?

[Koenigturbo]

On the back of the cluster guage, I see that there are several terminals where it says ingtion+, I thinkt here are at least six place where I see that. Is that the same as tapping into the fuse block for direct ingition source??
I'd like to hook up an boost guage, but it needs an ignition source, since I'm putting to gauge in the cluster why not tap in right there behind the cluster gauge, except wouldn't be sharing the circut?

 

[CRE]

I wouldn't recommend it. The soft circuit on the back of the gauge can only handle so much current. It may work fine, it may work for a month, it may burn up right away. Without knowing how much current the gauge draws it's a guessing game.