take off the hub. see the white plastic thing that spins and has 2 slots in it?? thats the tun signal deactivator. on your oem steering wheel you had two slots on the base of the steering wheel that fit onto the shaft, these lined up onto the white plastic thing and when you turned the whee, it also turned the white plastic, thus shutting off your turn signal. the only way you can get it back with an aftermaket hub is by fabricating a piece that will connect your hub to the white plastic.