I am retro fitting my 16 valve seats with heaters. Requesting wiring info/schematics for a 560SEL ( late 80's ) type system. Purchased switch P/N 126 820 68 10, AKA P/N 26 820 68 10. Where do these switch pins go? #1,3,4,6,7 and 8.

__________________
'87 190E 2.3-16
Heated Seats, Graphite Dash,
Delsing shift bushings