Check the listing for details. DAB+ Retrofit Dension DAB+U Interface Compatible With Opel Astra J. Condition: New. Listed at 309.69 USD. With the DAB+U you can retrofit digital radio reception on your original Opel factory radio. All you need is the factory radio, which also has a USB port. The DAB+U is connected via this USB port and is therefore automatically supplied with power (an extra power connection is not necessary). The DAB+U shows you the station name, title and artist on the radio display. A complete station list can also be displayed beautifully via the factory radio. Please use the eBay checkout process. All necessary information and payment options are displayed in this process. You will also receive an order confirmation separately by email. There you will also find all the relevant information about your purchase. If you have any problems with this, just give us a call! We will inform you as soon as we hav.