Speedometer bypass 2001 sportsman

I’m sure it’s on here but can’t find the thread so here goes…. My awd doesn’t work on on my sportsman 400 therefore my awd also doesn’t work (checked).. I was told by another owner that all I need to do is the following………… Disconnect both hub coils under the radiator cover, check the ohms,28 ohm I think he said, then cut both brown and white wires (ground) tie them together with another ground wire, then ground that wire to a good ground, he said the coil ground would work. Is a fix really that simple?? No way I’m paying for a speedo that shifts into 4×4 when it feels like it lol, thanks