That's the problem Jon I'm All makes so I need dealer level info on every manufacturer? Which technical data cd will cover all that??

I have quite a few of the yellow jackets mark which are good but I have a decent understanding of components and their function it was more the different ways in which they are used on different systems and how a manufacturer might utilise that on a vehicle setup which I was curious about and if there are sources out there which offer that kind of info?

I suppose the only way is through the dealer web portals, or start sleeping with every dealer service advisor in the Middlesex county!