Method to manufacture a panel comprising a substrate with at least one surface of plastic material and further comprising at least one component adhered to the surface of plastic material of the substrate, whereas at least the plastic surface of the substrate to which such component is to be adhered, is manufactured by way of a primary forming process, whereas the at least one component (12, 12.1, 12.2) is adhered to the substrate using the bonding properties of the plastic compound effective during the primary forming process forming the plastic surface when manufacturing the substrate, which method is conducted using the following steps: - providing a mould having a mould surface with at least one holding fixture (6, 6.1) being a recessed area with respect to the adjacent mould surface, - providing a pre-manufactured component (12, 12.1, 12.2) to be adhered to the plastic surface of the substrate, - providing a plurality of inserts (9, 9.1, 9.2, 9.3, 9.4) for insertion into a holding fixture (6, 6.1) and being detachably connected to the holding fixture (6, 6.1), - inserting into one or more of the holding fixtures (6, 6.1) a component support (9, 9.1, 9.2, 9.3) in a sealing arrangement with the inner surface of a holding fixture (6, 6.1, 6.2) and provided with at least one receptacle (11, 11.1, 11.2) adapted to at least partially accommodate the pre-manufactured component (12, 12.1, 12.2) to be adhered, the receptacle (11, 11.1, 11.2) being designed so that the surface of the component (12, 12.1, 12.2) not being accommodated within the receptacle (11, 11.1, 11.2) and facing in the direction of the mould surface forms part of the effective mould surface, in which receptacle (11, 11.1, 11.2) a component (12, 12.1, 12.2) has been or is introduced prior to the following steps so that the component (12, 12.1, 12.2) is held by the component support (9, 9.1, 9.2, 9.3), - applying the substrate forming plastic compound onto said mould surface, - allowing the plastic compound to harden, - demoulding the substrate with the at least one component (12, 12.1, 12.2) adhered to one of its surfaces from the mould and thus having manufactured the panel, characterized in that - at least two different inserts (9, 9.2, 9.4) are adapted for being alternatively inserted into one and the same holding fixture (6, 6.1) and for being detachably connected to the holding fixture (6, 6.1), of which inserts at least one is a component support (9, 9.1, 9.2, 9.3) for holding the component (12, 12.1, 12.2), and at least one is a dummy support (9.4) for insertion into a holding fixture (6, 6.1) to fill the recessed area and complete the mould surface in the area of the holding fixture (6, 6.1), - choosing one of said different inserts (9, 9.2, 9.4) for insertion into a holding fixture (6, 6.1), and - inserting into one or more of the holding fixtures (6, 6.1) a dummy support (9.4) before applying the substrate forming plastic compound. - providing a mould having a mould surface with at least one holding fixture (6, 6.1) being a recessed area with respect to the adjacent mould surface, - providing a pre-manufactured component (12, 12.1, 12.2) to be adhered to the plastic surface of the substrate, - providing a plurality of inserts (9, 9.1, 9.2, 9.3, 9.4) for insertion into a holding fixture (6, 6.1) and being detachably connected to the holding fixture (6, 6.1), - inserting into one or more of the holding fixtures (6, 6.1) a component support (9, 9.1, 9.2, 9.3) in a sealing arrangement with the inner surface of a holding fixture (6, 6.1, 6.2) and provided with at least one receptacle (11, 11.1, 11.2) adapted to at least partially accommodate the pre-manufactured component (12, 12.1, 12.2) to be adhered, the receptacle (11, 11.1, 11.2) being designed so that the surface of the component (12, 12.1, 12.2) not being accommodated within the receptacle (11, 11.1, 11.2) and facing in the direction of the mould surface forms part of the effective mould surface, in which receptacle (11, 11.1, 11.2) a component (12, 12.1, 12.2) has been or is introduced prior to the following steps so that the component (12, 12.1, 12.2) is held by the component support (9, 9.1, 9.2, 9.3), - applying the substrate forming plastic compound onto said mould surface, - allowing the plastic compound to harden, - demoulding the substrate with the at least one component (12, 12.1, 12.2) adhered to one of its surfaces from the mould and thus having manufactured the panel, characterized in that - at least two different inserts (9, 9.2, 9.4) are adapted for being alternatively inserted into one and the same holding fixture (6, 6.1) and for being detachably connected to the holding fixture (6, 6.1), of which inserts at least one is a component support (9, 9.1, 9.2, 9.3) for holding the component (12, 12.1, 12.2), and at least one is a dummy support (9.4) for insertion into a holding fixture (6, 6.1) to fill the recessed area and complete the mould surface in the area of the holding fixture (6, 6.1), - choosing one of said different inserts (9, 9.2, 9.4) for insertion into a holding fixture (6, 6.1), and - inserting into one or more of the holding fixtures (6, 6.1) a dummy support (9.4) before applying the substrate forming plastic compound.