I have a Kenwood nav unit with 7 inch screen and was thinking of installing it but I need to pick up a speed pulse for the mapping to work. Has anyone information on the location of a wire that give this, the wire color would be a great help. Also does the wire need to be programmed live, I have had this problem on Mercs and have had to have the dealer activate the pulse via a laptop.
If it is a big job I will just keep using my TomTom
thanks