The ornamental design for a vehicleaccessoryattachmentchannel, as shown and described.
FIG. 1 is a front perspective view of the vehicle accessory attachment channel;
FIG. 2 is a front elevation view of the vehicle accessory attachment channel of FIG. 1;
FIG. 3 is a rear elevation view of the vehicle accessory attachment channel of FIGS. 1 and 2;
FIG. 4 is right side elevation view of the vehicle accessory attachment channel of FIGS. 1-3;
FIG. 5 is a left side elevation view of the vehicle accessory attachment channel of FIGS. 1-4;
FIG. 6 is a top plan view of the vehicle accessory attachment channel of FIGS. 1-5;
FIG. 7 is a bottom plan view of the vehicle accessory attachment channel of FIGS. 1-6; and,
FIG. 8 is an enlarged front perspective view, taken along circle 8 of FIG. 1.
The broken lines in the drawings illustrate portions of the vehicle accessory attachment channel and form no part of the claimed design. The dot-dash-dot broken lines in the drawings define the bounds of the claim and form no part thereof.