Tail lid of a vehicle, comprising: - a body with a window frame; - a support mounted on the window frame; - at least one antenna electronic box (10, 10') mounted on the support; the support comprises at least one support zone (8.1, 8.2) for a respective antenna electronic box (10, 10') for the vehicle, the support zone (8.1, 8.2) comprising: - a support surface for receiving the respective antenna electronic box (10, 10'); and - a hole for receiving a screw fastener for fastening the respective antenna electronic box (10, 10'); - at least two ribs (20, 22) extending from the support surface, opposed to each other and off-set so as to enable a positioning of the respective antenna electronic box (10, 10') against and between said ribs (20, 22), each of the at least one antenna electronic box (10, 10') comprises - a box-shaped main portion (10.1) and - a fastening tongue (10.2) extending from said main portion (10.1), said tongue (10.2) comprising a fastening hole (10.3) through which a respective screw fastener of the antenna electronic box (10, 10') extends and fixes the antenna electronic box (10, 10') to the body, wherein one of the ribs is designed to abut against the fastening tongue (10.2) and to extend along a side of the box-shaped main portion (10.1), said side being adjacent to the fastening tongue (10.2), and the other of the ribs is designed to abut against an opposite lateral side of the box-shaped main portion (10.1), the respective screw fastener and the two ribs (20, 22) are configured to provide an isostatic positioning of the antenna electronic box (10, 10') against the support surface. - a body with a window frame; - a support mounted on the window frame; - at least one antenna electronic box (10, 10') mounted on the support; the support comprises at least one support zone (8.1, 8.2) for a respective antenna electronic box (10, 10') for the vehicle, the support zone (8.1, 8.2) comprising: - a support surface for receiving the respective antenna electronic box (10, 10'); and - a hole for receiving a screw fastener for fastening the respective antenna electronic box (10, 10'); - a support surface for receiving the respective antenna electronic box (10, 10'); and - a hole for receiving a screw fastener for fastening the respective antenna electronic box (10, 10'); - at least two ribs (20, 22) extending from the support surface, opposed to each other and off-set so as to enable a positioning of the respective antenna electronic box (10, 10') against and between said ribs (20, 22), each of the at least one antenna electronic box (10, 10') comprises - a box-shaped main portion (10.1) and - a fastening tongue (10.2) extending from said main portion (10.1), said tongue (10.2) comprising a fastening hole (10.3) through which a respective screw fastener of the antenna electronic box (10, 10') extends and fixes the antenna electronic box (10, 10') to the body, wherein one of the ribs is designed to abut against the fastening tongue (10.2) and to extend along a side of the box-shaped main portion (10.1), said side being adjacent to the fastening tongue (10.2), and the other of the ribs is designed to abut against an opposite lateral side of the box-shaped main portion (10.1), the respective screw fastener and the two ribs (20, 22) are configured to provide an isostatic positioning of the antenna electronic box (10, 10') against the support surface.