I am a girl, need help, 1986 560sl won't start, tries hard.

[mahouna]

okay, driving down road and it just stops, running perfectly before it stopped. Turns over but won't start. Ordered new fule pump relay after reading posts. Installed it and still Do not hear the fuel pump start and I used to be able to. A side note, at the same time now my window motor won't work and dash lights are out. checked fuses, they seem okay to me.
Now, one more thing, I am a girl and this is my husband car, I bought it for him 2 years ago and I am pretty sure he loves his 560 more than me.
One more question, is it possible to put the relay in the wrong way? There are 9 pins on the front and 4 pins in the back.

Thanks for trying to help me.