Simply plug inline with your head unit aerial connection and then plug the DAB plug into the DAB socket on the back of the headunit. DAB：179-240MHz. Just one aerial is needed to mount over windscreen,no need for another.
eBay
Car FM Signal Amplifier Anti-interference Amp Signal Booster Car Radio Universal Car FM/AM DAB + Antenna Aerial Splitter Adapter
Aliexpress UK
Fit for: Universal Specifications: Product Material: Plastic Colour: Black Connector: SMB connector Frequency Range: AM: 582hz~1830hz FM: 85-112MHz DAB: 179-240MHz Gain: 25dB Noise Figure: ＞2 Impendance: 75Ω Power Supply: 10-15V VSWR: ≤2.5 Maximum Output Level: 108dBµV Current: ≤70mA Packaging Weight: 80 g Packaging Sizes (cm): 20 x 19 x 3 Features: 【DAB Signal Conversion for Existing Aerials】 Enables AM/FM car aerials to receive DAB digital radio signals, allowing DAB aftermarket radio installation without adding a dedicated DAB aerial. .
eBay
Universal Stereo Aerial DAB AM FM Radio Car Antenna Amplifier Splitter Signal AMP Booster Radio Signal AMP Amplifier Booster
Aliexpress UK
High gain AM/FM DAB booster. Enables your fitted aerial to receive DAB stations. No need to fit a new serial. Boosts the signal to ensure good reception. DAB： 179-240MHz. Does require a +12v and a ground for operation.
eBay
Car Antenna Set Radio SMA/SMB Amplified Splitter AM FM Radio Antenna Aerial Kit Active Amplified DAB+FM/AM Radio Antenna
Aliexpress UK
Dab + FM/AM Car Radio Active Aerial Antenna Converter Splitter SMB Cable. connectors :SMB. Converts existing FM/AM aerials so that they can be used with DAB radios. Uses existing FM/AM aerial. Input connector: DIN (F).
eBay
DAB+FM+Car Stereo Antenna Aerial Splitter Cable Adapter 12V Radio Signal Amplifier Antenna Signal Booster FM/AM Car Accessories
Aliexpress UK
Dab + FM/AM Car Radio Active Aerial Antenna Converter Splitter SMB Cable. Connectors: SMB. 1 x Converter Splitter SMB Cable. ✅ Uses existing FM/AM aerial. Converter cable Length: about 30 cm. Input connector: DIN (F).
eBay
Superbat 5dbi Digital Freeview Aerial DAB/DAB+/FM/AM Car Radios Aerial Magnetic Mount Antenna MCX Male for DAB+Truner CDAB7
Aliexpress UK
With the radio on, connect the red wire to the 12-volt aerial power line. 📡Boosts Signal Strength – Enhances DAB, AM, FM, and RDS radio reception with improved clarity. The antenna installed on the windshield can be greatly improved without installing a second antenna.
eBay
Eightwood Universal DAB/DAB+Car Aerial Radio Antenna Glass Mount SMB Plug Female Connector for Pioneer Sony Alpine Ezi-DAB
Aliexpress UK
Dab + FM/AM Car Radio Active Aerial Antenna Converter Splitter SMB Cable. connectors :SMB. Converts existing FM/AM aerials so that they can be used with DAB radios. Uses existing FM/AM aerial. Input connector: DIN (F).
eBay
Superbat DAB/DAB+ Car Radio SMB Connector Aerial FME Male to SMB Female Right Angle 5M Cable for Sony DAB
Aliexpress UK
The antenna installed on the windshield can be greatly improved without installing a second antenna. With the radio on, connect the red wire to the 12-volt aerial power line. Antenna amplifier project length: about 660mm / 25.9in.
eBay
Eightwood DAB/DAB+Car Antenna Car Radio Aerial Internal Glass Mount of Fakra C/A Connector for Alpine Ezi-DAB Alpine Connector
Aliexpress UK