Nope sockets 12 and 24 are very clearly marked.
Tho I did wonder about overvoltage from the truck as scanias are crap like that. But I had it go on a daf too,all Other equipment works ok including my older s7000 gps
The problem seems to be with the GPs plug or gps
Old plugs have been returned yesterday
That’s why I was asking if anyone else with an sc5800 had experienced any probs
Looks like I’m in a unique position tho