'01 Legacy engine bay grounds?

Hello people,

I'm -finally- putting together my '01 Legacy L summer project, which I started too long ago. So long ago, in fact, that I forgot one or two things already :/ Among those things is where the ground wires/straps go on the engine. I know there are at least two of them: one going from the firewall to the engine (intake?), and one on the passenger-side suspension tower that probably goes directly to the block. But where?

Thanks!