Realistic 120-1959 - Manual (Page 6)

1. Attach the left and right mounting brackets to the sides of the
equalizer/booster.
2. Using the brackets as a guide, mark the locations for the mounting
holes.
3. Drill 3/16 inch holes in the marked locations, using care not to
damage anything on the opposite side of the mounting surface.
4. Remove the mounting brackets from the equalizer and attach them to the
mounting surface using the supplied self tapping screws.
5. Attach the equalizer/booster to the brackets and plug in the wiring
harnesses.