As an authorized AMP Research dealer, One Stop Car Audio located in, Northfield, NJ is committed to helping you choose the right AMP Research product for your vehicle. With four PowerStep lines, BedSteps, Bed Xtenders and accessoriesOne Stop Car Audio will help you select all the options you need for your lifestyle. One Stop Car Audio has a wealth of experience when it comes to power running boards, bed steps and bed extender products.One Stop Car Audio 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 One Stop Car Audio in Northfield, NJ your local preferred AMP Research dealer.