I would like to extend some wiring for a counter outlet that is running behind a refrigerator, which currently encased in a metal "cable concealer" raceway. Note: wiring is in a raceway because most of the walls in my apartment are solid concrete - which is the main problem I'm facing.
The wires need to be extended to move the raceway and its outlet up about 1.5 ft so I can under-mount a low profile outlet below the cabinet instead of having a large box+outlet jutting out from the (concrete) wall. (Also I'm tiling a backsplash and the outlet+raceway are unsightly).
Are there any possible methods to extend this wiring on the finished concrete wall without a face mounted junction box sticking out? Ideally I would run a whole new length of wiring, but I'm not sure where the closest junction is located (wiring disappears within a false wall). Thanks!