None of my (few) Satnavs have turned off their screens automatically. But I rarely use one, even less mount one on the dash. Both dashcams, however, do so by default. A change of settings can negate this.
Graham (G4FUJ)
Sold L44FOR 4/4 Giallo Fly '11 MINI Countryman Cooper D All4 '90 LR 90 SW
