I’ve been using the Parrot system in my Twizy for quite a while now.
I listen to the Radio by streaming the data thru’ my phone but it does use about 1 Gigabyte of data a month.
So wanting to reduce my data use I have fitted a DAB Radio head unit.
It is a Sonichi S100 from Halfords for £49 with the Sonichi External DAB aerial for £14.99
The unit is approx 100 x 70 x 20mm in size.
I have the head unit plugged into the 12v socket and store the DAB unit in the glove box.
The 3.5mm lead from the parrot system plugs straight into the DAB unit and the aerial also plugs straight in.
The aerial is an external one with a Magnetic base but it works fine inside the Twizy.
I have mounted the aerial in the rear compartment void behind the passenger seat.
Works really well and now I’am not using any data allowance