Integration device and method of manufacturing a shell for a cradle

An integration device for incorporating a cellular telephone in a vehicle,

• whereby the integration device comprises a receiving compartment, a coupler antenna for mobile communications attached to the receiving compartment, electronics which can be attached to an external antenna,
• wherein the integration device incorporates multiple coupler antennae connected to the electronics,
• whereby these coupler antennae are suitable for connecting to the electronics via at least one antenna of the cellular telephone,
• whereby a communications connection is made via the cellular telephone network such that the electronics of the integration device for the active cellular telephone inserted in the receiving compartment, regardless of the type of the cellular telephone inserted and regardless of the position of the cellular telephone inserted in the receiving compartment, selects and uses for the communication that coupler antenna with the highest reception quality in the communication with the cellular telephone located in the receiving compartment.