Hello Beemerboy9...Will the Dension DAB=U fit in the right hand side small compartment that has the USB on my 2015 RT? Also what other options are they for the aerial location if top box not fitted, (no rude comments) would a tape type aerial stuck to the inside of a panel work?
I think it would be a bit tight in there - and I also use a USB stick for music when travelling abroad. I mounted mine behind the speedo cluster, therefore I had to drill a hole into the RH compartment for the USB and aerial lead. I would use a blanking grommet for the hole when selling the bike.
The big problem with a DAB radio is that the aerial needs a decent ground-plane to work, quite unlike a fairly omni-directional FM aerial. Consider a ground-plane like the flat metal roof of a conventional car. I have simulated the ground-plane by removing the rubber passenger backrest from the top-box and folding several layers of aluminium foil underneath it. The aerial is a magnetic-base type mounted on a mild steel disk stuck to the top-box with double-sided tape. This method gives good radio reception. I showed it to the BMW dealer in Berlin and he was amazed.
A stick on aerial did not work for me, nor did a conventional aerial until I placed it on the lid of a biscuit tin! A Eureka moment, but how to mount a biscuit tin lid on an RT?
The 2021 RT has a DAB radio option - and I will be fascinated to see how they have done the aerial bit.
If you want to discuss some more, PM me for my phone number.
