Thank you both for the responses. Yes, I sent him a PM as well so we’ll see if he responds too.
In the instructions it says to undo the red/white wire to setup programming. The red/white wire is also in a two pin connector with a green wire labeled as “cathode” which looks like the ground. Now this is just for the preliminary programming for speed sensor, fuel, etc…there is no KMH to mph in that part. Just in the standard mode for when you’re using the speedometer normally. I undo not wires here red/white and the green when doing the programming. Hold the button on the back for a few seconds then switch on the key and I’m at the programming screen as normal and after inputting my settings that will save as well.
I’ve tried like you’re saying too. Switch it to mph, hold the button on the back down and cycle the ignition. Same thing, back to KMH. It’s not a huge deal, takes all of 2 second to switch it back to mph but kind of annoying is all. I did some further research and found that the speedo is made by a company called Zaddox and it is the SM30 model. There’s another company called Motea and they sell it as well. I need to see if another company has any form of instructions for this speedo besides five aces.