I just went to the junk yard yesterday and found an awsome, in perfect order cruise control setup. I got the vacuum regulator (which mine is torn) the electronic control unit, the vacuum pump and all the hoses. Which are PERFECT. The problem is. If everyone could open their bentley bibles to page 368-1 and check out the diagram. I dont know what 1 is, Speed transmitter. Oh the one thing I forgot to grab was the relay. I acedently grabbed something else. the 2 black relays next to the cruise relay. On my cruise setup I dont hear anything. nothing which is why i grabbed everying (almost) if there is no vacuum would I still get a click or anything? also I didnt grab the switches #6. I want to take smokescreen on a long trip but hate not having cruise.