I recently purchased a JVC KN-DX5000 for my 2000 Trans Am. In the wiring diagram it states that for the navigation to work I need to wire into the speed signal lead wire or purchase some speed sensing unit for a rediculous amount of money. If anyone can help me with this like provide a diagram to show me where the wire is located ect it would be greatly appreciated. Or if there is another alternative.

BTW its a 2000 Pontiac Trans AM