Under the battery tray. The battery and battery tray must be removed to gain access to charging system fuse.
If you want to protect the electrical system from a major melt down, yes.
I can tell you that on a 2000 mercury cougar it is a fuse on the positive cable between the battery and the alternator
You have a problem with the charging system, probably a bad alternator.
The Charging system includes the alternator, either an internal or external voltage regulator, a charge indicator, the battery, a fusible link, and the wiring between all of the components.
Sounds like it is not charging, have the charging system tested, it may be the alternator at fault.
Under the battery tray. You need to remove the battery and battery tray to gain access.
Looking at wiring diagram, it looks like there are a couple different ones that you might need to know about. The diagram is accessable on the Autozone website. They are usually located close to the battery, will probably have to cut open the harness to find.
Catalytic converters are located in the exhaust system between the engine and the muffler.
Alternator is not charging the battery. When you turn on the lights the system doesn't have enough power to keep the engine running.
You can find a diagram for the vacuum system in a 1995 Blazer 4x4 will be located in the Blazer service manual. The manual can be purchased in most auto parts.
They are all threaded into the exhaust system at various points.
where is the transmission control system on a 1996 chevy silverado 2 wheel drive 5.7