I found these instructions. Are they right?
"As for the wire, yeah from what I read that is not the right spot.
Try this spot. On top of the steering wheel shaft there is a rubber piece(between the steering wheel and instrument panel), just pop up that rubber part across the width of the shaft (left/right width). Then
grab the cover above the instrument gauges and pull, it should start popping out along the top and left lower side. This will allow access to the harness behind the instrument cluster. Looking at it from the drivers seat, there should be two harness one small one on the left and one on the right. Look at the one on the right. Two rows are in the middle of the harness. The row closes to the windshield side of the vehicle (top) and count 5 holes in from the LEFT. That spot should be empty. Strip your wire and double it over and be sure to have at least two inches and shove it in that spot.
Now drive your car while in the speed sensor menu connection and see if it shows the signal. If not, be sure to check the wire to see if it got down deep enough.
If it is good to go, just tape the wire to the others for a snug fit and line up the top of the dash cover and push it back together."