connector mount 86 has an aperture 88 therethrough which closely receives and bindingly retains the 4 pin connector within storage mount 86 when this connector is not in use adaptor 70 further includes a wiring harness or cable receiving and retaining structure 110 which is spaced along the outside thereof a short distance from the four pin connector storage mount 86 referred to above fig6 8 and 10 structure 110 includes a pair of curved downwardly tapering resilient walls 112 114 which define a slot 116 therebetween leading to an enlarged opening 118 disposed in an angular wall segment 120 leading to an end wall 122 opposite face 83 in which a generally semicircular opening 124 is formed in use referring back to fig1 a user can easily trim cover segment 12 to fit a portion or the entire length of crossbar 102 of hitch 100 to provide a protective and aesthetically compatible cover for crossbar 102 in which regard the cover segments 12 may if desired be given a selected color or other surface treatment cover segment 12 is placed over crossbar 102 such that crossbar 102 is received in hitch channel 15 of cover segment 12 as so positioned the flanges or legs 14 16 preferably extend beyond the rear side of crossbar 102 such that cover segment 12 may be retained in place upon crossbar 102 by self locking tie straps 26.