Sense wire for navigation?

[MustangGT2002]

Trying to install a Kenwood in dash navigation unit. Does anyone know where to find the vehicle sense wire to connect so the navigation knows how fast to move you etc?

 

[Supradude26]

Kenwood nav units work without the speed sense wire hooked up, if the antenna is in a good location.

 

[kendoo130]

You don't need to hook up the sense wire-Like supradude said just make sure the antenna is in a good spot and the nav will do the rest.