A method is provided for manufacturing a headrest. The headrest includes an integrated functional module. The method includes mounting the functional module on a supporting rod and enclosing the functional module mounted on the supporting rod with a housing (102), which is fitted on a front part (104), and a rear part (302) and introducing a cable tube (208) into a hole (502) in the front part (104) or in the rear part (302). The cable tube (208) serves for receiving a cable fastening the front part (104), the rear part (302) and the supporting rod (204) using a fastening device.