Combine all relish ingredients in medium saucepan. Cook over medium heat until mixture boils, stirring occasionally. Reduce heat; simmer 6 to 8 minutes or until onion is tender and mixture thickens. Cool. Meanwhile, combine soy sauce, orange juice and honey in shallow glass or plastic dish; mix well. Add salmon, skin side up. Cover; refrigerate 30 minutes. Heat grill. Carefully oil grate and both inside surfaces of grill basket. Place salmon in grill basket, skin side down; brush top with marinade. Discard any remaining marinade. Fasten top of grill basket. Place basket on grill, skin side up; cover grill. Cook 5 minutes over medium heat. Turn basket so skin side is down; cover grill. Cook 4 to 8 minutes or until flesh is opaque and flakes easily with fork. Remove salmon from basket with wide spatula and place on serving platter. Cut salmon into 4 pieces. Serve with relish. Makes 4 servings.