560SEL vacuum lines

[sam196370]

I'm putting the vacuum lines back into my '91 560SEL and can't figure out where the vacuum amplifier is secured (I know where the lines go), I'd assume it doesn't just sit on the intake manifold...any input would be very helpful.

Also wondering where the vacuum lines go from the yellow nozzle on the driver's side firewall - I know it splices into two lines but forgot where they go.

Thank you in advance.