Speedcal on 97 GT??

[Bri's ride]

I have a 97 GT and when i was putting in my shifter i notice a conector near the trany tunnel. It looks like the same one for a speedcal, I though you could only use the speedcal on 99+ mustangs? Am i wrong on does that conector just do nothing?

If i can use a speedcal to correct gears could i do it electonicly(not with 23 tooth gear or whatever). I thought you had to correct gears with speedo gear on 98's and below?

Thanks for the input if you can understand what im talking about