not shown disposed in a conduit portion 914 of the housing 910 the accessory bracket 100 preferably provides an accessory interface 110 the accessory interface 110 preferably includes a structure that may be readily mated to a support interface provided on a support bracket according to the present invention for instance the accessory interface 110 may include one or more engagement structures such as snaps clips hook and loop fasteners etc a preferred engagement structure is one or more rail members 112 the preferred rail members 112 are preferably provided as a pair of at least substantially parallel rails provided along a rail length 114 and spaced by a rail spacing 116 preferred rails 112 have a generally t shaped or i shaped cross section the accessory bracket 100 may further include a mounting plate 120 to which the accessory interface 110 may be mounted alternatively the accessory interface 110 may be disposed directly on the accessory 900 if used the mounting plate 120 has a top surface 122 preferably adapted to mate with a portion of an accessory 900 and a bottom surface 124 which is disposed substantially opposite the top surface 122 the mounting plate 120 may be secured to the accessory 900 by any conventional means such as by adhesive and or fastening members 126 the accessory interface.