Just back in stock, the long unavailable charge socket has reappeared in limited new old stock.  Charge away!

It's that strange little thing that is up under the passenger side of the dash, it probably has two holes cause the plug unit is gone or maybe it is there but you didn't know what the heck it was. This is to charge or run electrical devices like old shavers, yes, whisker shavers. For the man on the move!  What a considerate car that Interceptor!  (See N17/30 for the plug only).