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See Figure 1. RECEIVER (TOP VIEW) FRONT FIGURE 1 2. Secure the brackets (not supplied with the WA503 kit) to the sides of the receiver with the screws removed in Step 1. See Figure 2. RECEIVER (TOP VIEW) / FRONT \ BRACKET BRACKET FIGURE 2 NOTE: There are four holes in each bracket. Use the rear holes if the receiver is to be recessed; use the front holes to mount it flush to the rack. WA503 Adapter & Cable Installation 1. Insert the WA503 adapters through the holes in each bracket, and