1990 ford f150 4.9L
 

This is the first time I used this site so if I mess up heyy go figure,I'm looking for a diagram for a 1990 f150 solenoid and the connection to the starter and the alternator? I know that the hot wire from the battery goes to the first post and then I get confused as to which side the alternator wirng harness goes because I had seen a video on taking the wire from the starter to the right side of the solenoid,which now has me confused as to which one is the wire from the key?