Caravan Clubs: The ABI & Friends Caravan Club - find the Was wondering if anyone could provide me with a copy of the wiring diagram or just the manual for a 1999 ABI Montrose 35×12 static caravan. Thanks in advance. Sebastian Smaka 1 November 2018. Looking for manual Abi Starlet 15/5 1990. First time caravan owner in need Help! Carola Baaij 22 January 2019. Hi. Internal (12S) Wiring Diagram For The Abi - Caravan Talk I have the ABI supreme limited edition and need to redo the wiring inside the caravan, the internal 12 volt lights work but it will not run from the car engine on or off and it does not charge my leisure battery. I need the wiring diagram does anybody Caravan Supplementray 12S 7pin Socket & plug wiring diagram This is the standard UK wiring of a the supplementary socket and plug otherwise known as 12S. There have been slight variations over the years as most newer caravans control the battery charging in the caravan rather than from the towing vehicle.