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We found this relay board bolted to the inner fender of a late-’90s Nissan. Most domestic cars tie their relays into a large fuse box that can be difficult to reuse. This board incorporates five relays of different load capacities. If the relay is not marked with an amperage load, you can estimate its capacity by the size of the wires leading from the connector. The yard charged us just over $26 for this.