I just purchased a Pioneer radio and don't know where to hook up the wire for the speed sensor . The place where I bought the radio says this is not necessary, I would still like to hook it up. The manuel says the gps won't work accurately without it . Anyone know where or what wire I need to tap into?
Thanks
Bob

 

If you don't need to do it,you just might avoid some problems up the road. The newer cars don't like accessories tapped into the signal wires and respond accordingly.