Hi,
Sorry to push such an old entry to the top but i thought i'd share some experiences with the cruise control.
The Ebay sets which are sold contain little more than a wiring loom and 2 switches. However, they do work on the MY2002 and upward Defender ECU's. There are some conciderations to make before buying these sets:
1) do you use the standard transferbox ratio's, if not the CC might not work or only works at 4th gear.
2) do you use the standard Brake- and Clutch switch configuration, if not, disengaging the Cruise might be an unpleasant surprise.
The fact that the Discovery uses a BCU to pass on the speed signal is not really important as the cruise function on the Defender still works (at least on my Defender).
I'm now working on a Cruise Control for the older types of ECU's (the MSBxxxxx ones) which should work in the same way the newer types are working and from what i've discovered untill now it is possible to get it working without upgrading the ECU to the newer MY2002 type.
Cheers,
Hugo
