Added mains hookup
Here's the geeky wiring diagram!
    
    
    
    
Finally, here's a wiring diagram I drew.  Nerdingly brilliant.

    
    
Route – Bockholtz, Luxembourg to Brugges, Belgium via Brussells
The sun burnt the fog away fairly quickly, and the road to Brussells was uneventful.  I got there around lunchtime, and just wanted to park up somewhere for a couple of hours to get some food and have a mooch around (I'd heard it was fairly boring, as cities go).  I found a multistorey, but misjudged the height limit.  It said 1.9m, which I know is right on the boundary of Billy's height, but I chanced it anyway.  Mistake.  I've got some nice red scratches on the roof now, from the red and white striped pole thing they have hanging at the entrance to show the height limit.  Ah well, at least it was that rather than a concrete ceiling.  Hopefully it will rub out with some t-cut.
I've learnt you can get a feel for a city fairly soon upon arriving, and I decided even on the ring road that I really liked Brugges.  Maybe it was the guzillion kids on bicycles that crossed in front of me when I was at a red light?  It just feels really nice here.  I got the bus into town from the campsite, and had a wander around, and then some Moules Frites for me dinner.  On the bus back, I made friends with a couple who were visiting as part of their gap year – I gave them a copy of the Alan Rogers PDF to help them on their travels.  The whole city and its people and its visitors just seem really laid back.
Route – Esch to Luxembourg City to Bockholtz
I had read nice things about the capital, so I headed there for lunch time.  It is indeed a really nice place, very cosmopolitan feel, lots of people of different ages and different backgrounds all doing their own thing.  I saw the ruins of the original castle (the reason Luxembourg became a place) and the caves underneath it, then had a sarnie.
I also liked Luxembourg City because the whole of it is one big WiFi hotspot.  It's the future.  So I sat on a bench as they cleared up the flower market, and uploaded a few photos and stuff.
My new favourite road in the world is the Luxembourg N27.  I only found it by accident, but it is so much fun.  It's fairly flat for starters, which is good for Billy, but it sweeps around, following the flow of the lake in the bottom of this valley.  At one point, you cross the river on a wooden bridge, take a sharp left, and then re-cross the river almost immediately back to the other side.  If you were designing a fun race track, it would be a bit like this.  If I lived round here, I'm sure I'd be doing time trials on it, like I used to on the A60 Lboro to Nottingham.
Not even 10pm yet, but I'm in bed.  It's the easiest way to keep warm.  I would definitely not do this trip any later in the year than this.  The cold is just about manageable, but I can understand why 30 Sept is generally seen as the close of the camping season.  Italy was hot and lovely, but you can't really avoid several days in the colder North to get there can you.
Route – Stollhoffen, Germany to Esch, Luxembourg
I decided not to plump or another night in Germany in the end.  I think I'll visit Luxembourg City tomorrow daytime, and stay at another campsite in the north of this wee country tomorrow, before heading into Belgium.
Need to make sure that I actually DO something on these last few days of this trip.  It could very easily just be about getting home and killing time between now and my ferry on Saturday.  That would be a sad way to end a good holiday.
    
    
Route – Munstertal to nr. Stollhoffen, Baden, via Titisee
I drove around the Black Forest today, taking lots of photos and stuff.  I had intended to drive to several little Black Forest villages, to really suck up the atmosphere, but the driving was so arduous (Billy doesn't really like hills) that I only went to Titisee, then headed for the motorway.  It was 3pm by then, so it was the right thing to do.
It's all fairly picture postcard, but also all has the feel of being quite tacky.  I'm certain that's unfair, and that we've taken the heritage of this place and plastered it across so many things for the last 100 Christmases, that its our fault not theirs, but it does leave a lasting impression.  In fact, a lot of Titisee did just make me feel Christmassy – maybe it was the wooden toys and things for sale, it as all very 'visiting German craft market'.  All I bought was some shnitzel (tee hee) and some little bottles of booze to try.  Might buy some of the Kirschwasser tomorrow, cause it tastes pretty good with coke.
OK, geeky campervan bit over now.  Tomorrow I'm going to drive North and West, into the bit of Germany that borders Luxembourg.  Think I'll spend one more night in Germany, before heading to Lux the day after.  Night night!
    
    
Route – Lungern, Switzerland to Munstertal, Germany
£12 to climb 2500m into the sky?  I think that's a bargain.  The first part of the journey was by cable car to 1500m, and the last 1000m was by ski-style chair lift (in fact, it's clearly a skiing region, it's just not snowy at the moment).  The vista was so unbelievably perfect, I just gawped in wonder.  None of my photos will do it justice, I am certain – though, that didn't stop me taking loads.  It was the reason I decided to drive through Switzerland, and made me so happy I could burst.  Yay.
But I had to come down and get a move on.  I fancied staying in Switzerland another night – I'd withdrawn 300 SFr, not knowing what their currency was worth, so I've still got loads of it left and might as well spend it here.  I drove to the capital Bern, and found their only campsite to be closed - Alan Rogers has naff all campsites listed for northern Switzerland, so I was on my own here.  So, I decided to carry on to Germany, since it was only an hour away, and had lots of listed campsites.
Route – Lake Maggione, Italy to Lungern, Switzerland
 Tonight, dear reader, I am a man.  I ever there was doubt cast about my manhood (heaven forfend) let that doubt now be cast asunder.  I am a man because, having arrived at my campsite in Switzerland, I have this evening: gone on a hike, found firewood, chopped it up with an axe, made a fire on the beach, and cooked steak on it for my dinner.  Whilst drinking whisky.  Oh yes; I am a man.
Seriously, it's beautiful here.  Think Heidi and Sound of Music, and that's what this lake whose shore I'm sat on is like.  The brazzier is burning to the right of me, and the lake is lapping a few metres from my feet – not that I can tell, because it is pitch black out here.  It's everything you wanted Switzerland to be.
I left Italy at about noon.  It absolutely pissed it down in the night.  This meant two things.  One, all my laundry got drenched on the line; not to worry, they had a tumble dryer for 3 EURO.  And two, Billy sprung a new leak.  Took me ages to work this one out, at 2 in the morning.  Basically, because of the way I was parked, the rain water was gathering in the rear gutters, and overflowing, and pouring into the top of the tailgate.  On to my head.  I tried the Bestival method of blocking the holes with dirty socks, but it was no good.  So I went outside (in waterproof trousers and jacket, rarrrr) and stuffed the dirty socks in the tailgate out there instead.  Much more effective.
OK, so the fire is dying down, and I am getting a bit chilly, so I better go back to Billy.  'The trick to staying warm is not getting cold in the first place', Freya said last week.  So, I better heed her advice.  Tata for now!  (ahem... manly grrrr)
    
    
Route – Bologna to Maccagno, Lake Maggione (Italian/Swiss border)
 The campsite by the lake is lovely.  It's called Azur Parkcamping Maccagno, and seems to be entirely staffed and patronised by Germans.  I suppose it is practically on the Swiss border, so that would explain it, but even all the signs are in German!  I've started saying 'danke' already.  It's right alongside the lake, with thankfully a mere chainlink fence separating us from the water, as opposed to hedges or tall fences at other places.