Hey was driving home in the AWD and noticed that the ceiling light & the red door lights didn't come one when i opened the door like it usually does. The ceiling light is ok - I can turn it on manually but seem to have lost it's auto function?

I'm thinking a fuse is blown.... will have to have a better look when it's light..... but any suggestions welcome. :)

From the cars I've had in the past, that can't be a fuse issue. It's always been a problem with a switch.
I have nfi if a Magna's wiring could be different, but I'd still lean towards a switch problem.

Try opening your passenger door and/or playing with the door switch. If you're interior light comes on then, you've located the issue.
Could also be the switch mechanism in the light, if it's not contacting to the auto or 'door' position properly.

just some ideas - and surely opening the other doors is about the easiest troubleshooting step you can come across. :)

yeah, tried opening all doors already same result - so there's a disconnect between the doors and the interior light.

Like Oggy (wisely) suggested, may also be a poor contact in the light unit, where the "door" position isn't getting good contact.

Do you have the little square lamp in the centre of roof (roughly above front seat backrests), or the lamp closer to windscreen with map lights either side of the dome lamp? Just try jiggling the switch on/near "door" setting in any case, and see if you can revive the lamp.

Have you done any work/cleaning near the fuses in drivers footwell by any chance? Its possible there could be poor contact from some of the looms at the "junction block" which is kind-of above the fuses. The wires run from doors etc to junction block and then up the drivers A-pillar and to the lamps.

Also try the door switches. Gonna be one of those "trial and error" problem-tracing situations, I'd say. If you have the courtesy lamps in each front door, they usu come on independently of each other - ie: only light up when THAT door is open, so that suggests its not the door switches (or at least not just ONE door switch, and what would be the odds that two door switches would go out at same time?).

Yeah when I had this it was only just 1 door - 1 broken switch did't mess up the whole equation (might like happen if every door was in series).

Buuut.. in my wagon it was actaully a bad globe.. like sometimes it'd work and then stop again if I wiggled it started working again every time.. felt like it was the contacts dirty but might have also been the filament flopping around... new globe fixed it. (edit; just read the manual function works.. guess it's not that)