Is there any reason why my RCD510 is always fully dimmed, even though i have set it to the brightest level? it used to work ok.
Once it started up bright , and then dimmed itself as i drove along......
Someone suggested it is related to battery condition?
Do you know what the very small hole is on the rcd510 facia in top lh corner? as i have covered this with my parrot, its not some sort of daylight sensor is it?