SL/R230: QUESTION: power outlet (cigarette lighter)
....? what do you guys think and if it is the fuse, how much should it typically cost to have it fixed

There are usually an extra fuse or two in the fuse panel. Should only take a minute to locate and replace that particular fuse. If you look in the manual, you'll find the fuse diagram and a 'map' of where that fuse is.
Just find it, remove it and replace it with the same voltage fuse (maybe a 10 for that item) and you'll be good to go.
Jim



