As an authorized AMP Research dealer, Add Ons At Sounds Unlimited located in, Reading, MA is committed to helping you choose the right AMP Research product for your vehicle. With four PowerStep lines, BedSteps, Bed Xtenders and accessoriesAdd Ons At Sounds Unlimited will help you select all the options you need for your lifestyle. Add Ons At Sounds Unlimited has a wealth of experience when it comes to power running boards, bed steps and bed extender products.Add Ons At Sounds Unlimited offers the best choice of PowerSteps, BedSteps, BedXtenders and accessories. They also sell and install other truck, Jeep & SUV accessories. If you want the best deal on a brand new AMP Research product and want it done right and quickly then head over to Add Ons At Sounds Unlimited in Reading, MA your local preferred AMP Research dealer.