Try an Ebay search for "Bosch relay". There are at least 500 of them available on any particular day, and just about all of them have a schematic diagram right on the side of the relay. There are multi-pin plugs there for them, also.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!