If you need to hack an SI all you do is wire terminal 2 to the B+ on the alternator touch term 1 with a test light with the engine running if the light goes out you're charging. Test it occasionally but again this is just to get home so no need to worry.The reason you check occasionally,like next time you need to use the car or its been sitting a while. The alternator needs the exciter circuit( test light) to create an electro magnet and start charging,but the alternator will retain residual magnetism for a short time. And if you sit down with a wiring diaghram,and use common sense you can bypass almost anything on the truck with a piece of wire and a couple alligator clips.
