No cruise and the tach won't work
 

Decided this might be the best place to ask about this. I got a tach last year for christmas and installed from somethin I found either in a sticky here or someone posted the wiring diagram but I get nothing on it. also the cruise has not worked since I got the truck. I am thinking the two are related in the fact that I do not see any signal coming from the sensor up on the crank pulley. Does this sound like I am headed in the right direction with my theory or is there something else I should also be checking? This is an auto for any one who may ask that question. Thanks guys!