I want to connect a couple of 'smart' chargers (CTEK) to my SL over the winter but could do with some advice/help:- Which battery is which? I.e. which is the starter battery and which the AUX (or whatever the other one is called)? I think they are front and rear respectively, but would appreciate confirmation. Any suggestions as to a connection in the engine compartment that could be used to connect to (and charge) the rear battery? Are any/all of the fuses from the rear battery? Is it possible to download a wiring digram from somewhere? With that I could probably work it all out. Hope someone can enlighten me with answers to the above.