If your vehicle is showing keep blowing the same fuse repeatedly after replacing it, here are the most likely causes and the parts you'll need to fix each one.
A wire's protective insulation has rubbed away against the metal chassis or was accidentally pinched under a bolt during recent repairs, creating a direct electrical path to ground.
A motor, actuator, or sensor on that specific circuit has failed internally and is drawing too much electrical current, causing the fuse to blow to protect the wiring.
Tapping into an existing circuit to power aftermarket radios, lighting, or alarms can draw more amperage than the factory fuse was designed to handle.
The relay controlling the circuit has melted or shorted internally, sending excessive current straight to ground instead of routing it properly.
Water leaking into the fuse box or a control module causes corrosion and electrical shorts across the terminals, repeatedly blowing fuses.