Hmmm...as the OP, I'm now rather glad I self-installed a BlackVue DR750 now, mostly because the dealers were continuing to say they could fit S4s, but S5s - it's a shame that so many have a bad experience with the UTR - it seems like all the hard work has been done, but the last 10% makes the difference between shoddy and useable.
I was actually looking at the BlackVue 750 & 900 last night and thought that I should have gone for that brand - maybe too late now - depends on my impending battle with Audi. If I get the UTR removed & my money back (a long shot, I know), would you recommend the BV ? Any weaknesses.
btw: OP ?