I've got two outlets on an exterior wall that I am replacing the wiring to them (old NM without ground). The wire will come up from the basement to the box (which cannot be easily removed). On the other outlets I've done on an exterior wall, I've removed the baseboard and cut a hole in the wall at the bottom to help fish the wire. The two that will present problems are within a built in cabinet, such that I don't have access to the baseboard, or anywhere close, to help fish the wire. Are there any suggestions for fishing the wire from the small hole in the basement to the small hole in the junction box through loose gray insulation?