Just finished the installation. Took about three hours working at my slow pace.
Used an E18 and E14 socket to remove the front seat front nuts and rear bolts. I didn’t actually remove the seats; just lifted them slightly lateral of the mounting points. Then I simply pulled the console back. This part only took about 8 minutes.
There is plenty of room for the Rockville SS8P. Just note that the closer you place it toward the firewall, the tighter the console gets. I wanted it far enough forward so I could still adjust the screws via the removal console side panel.
The wiring took the longest. I ended up just using the mystery wire connector circuit which was confirmed to be AUX PWR2, a 20-Amp fused circuit that is constantly hot. I decided to use the blue wire on the Rockville harness and connected to an ACC wire located in the panel near the driver left foot.
I pulled the radio and used the solderless quick splice connectors to attach some 22 AWG speaker wire from the radio connector to the Rockville harness for the speaker high level inputs (to the front speakers).
Everything looks clean and is still quite accessible.