Anyone out here that owns or owed a 2.0L V6 EA4A and had the exhaust muffler control working on their car?

Maybe someone have, or know where to get, the wiring diagrams for an EA4A.

Would anyone know where to find some pictures of the vacuum lines running from the engine bay al the way towards the Left rear towards the Exhaust Muffler Control vacuum box. I do have ASA so I have a schematic of the lines but can't figure out the exact bolt on positions of the lines on the cars body.

The parts for the complete system are on the way but wondering how it is switched. Where the vacuum is taken from and what the Engine ECU on/off switching logic is.
Does the system also contains a "Sport / Tour" switch like the GTO/3000GT?

Cheers