Opel CAN bus gateway

Hello dear can tool community,

I drive a 2003 Opel Vectra C 2.2, and it seems that its CAN bus is not functioning properly.
Das Happylightshowmodul läuft zwar aber das ZENEC läuft nich. Nand my question:

Is it possible to create a gateway that connects the CAN bus of the Opel (2003, LF model with 6 buttons) and the CAN bus of the Zenec system? I want to not only read the ignition signal and reverse signal from the Opel bus, but also control the BC (multifunction display) via the Zenec system.
Is that possible, and what will it cost me?