The dash backlight on my 13 has started flickering on tickover, only slightly, more noticeable when cold as it runs a little lumpy for the first 30 seconds or so, just wondering if this is a bad earth or an early warning of something else electrical before I start pulling connectors etc.?
Measure the battery? Sounds like it's on it's way out and wouldn't be surprising this time of the year given it's the tail end of winter.
I'll pop a new battery on, it starts fine but rather not get caught out, usually get about 5-6 years out of a battery so it's about time. Will check out the regulator if still the same.