Interesting discussion re DAB aerials; I think it will be a challenge in a D2.
I've been experimenting with DAB reception in my house, which is in an awful area for TV and catastrophic for DAB. Plus the IR-coated double-glazing reduces signals further. And to add insult to injury, most of our TVs create interference when on that destroys DAB reception.
What I have found is that, on a standalone radio with a whip aerial, the length is critical, and it usually needs to be vertical. Adjusting a typical FM telescopic aerial to about 55/60cm seems to work best, not sure what wavelength ratio that is. A longer horizontal aerial sometimes works, a short one never.
I've also tried a feed from our roof-mount antennae - the only way to get even a minimal Freeview TV signal; so we mostly use FreeSat. That has both TV and FM antennae, fed into a multichannel/mux amplifier to various outlets around the house. Some of these have filtered FM/TV double sockets but many are unfiltered.
IIRC DAB frequencies are between FM and TV (old 405-line band?) and I find that a lead from an unfiltered socket gives decent DAB reception, but neither the TV or FM filtered sockets are much good.
I don't know which aerial (CBA to test as it involves scrambling in the loft!) is actually picking up the DAB signal, but I suspect it's the FM one as it's a multidirectional type, whereas the TV aerial is pointed at Crystal Palace (some way away). The aerial amplifier is probably pretty wideband anyway.
That's all a bit negative, but indicates the challenge you may get with DAB when you leave a good reception area.
Our Volvo has DAB (probably FM too, but I've never investigated) and that actually works fine by our house. Not sure where the aerials are for that, maybe in the rear window and/or roof sharksfin?
And as a footnote, the Freeview TV in my car uses a pair of glass-mount aerials but reception at my house is usually pathetic.
I don't have an OEM tuner anyway, but when I tried to use the TV aerials in my old S8 for DVB-T I was beaten into submission.
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2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions, ski hatch retrofit; extended leather. Aftermarket DVB-T, reversing camera and full XCarlink (Bluetooth etc.).
2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation".  (A much rarer model than a D2 S8 by the way!) Oh, and a brand new engine at just under 30,000 miles on the factory one! 
Finally: gone, but not forgotten.....
1998 D2 PF S8. AgateGrey/Platinum. Every option (I think) except electric rear seats, tiptronic steering wheel, ski hatch, towbar & dimming door mirrors.
e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course.  (internal dimming mirror added later)
1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon, Auto-dim mirror, Leather, Trip computer, Cruise control, OEM Ford SatNav with CD changer.
And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850!
Last edited by HPsauce; 8th June 2018 at 05:39 PM.
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