Got mine factory installed
Not too much help, but mine was factory installed and I don't recall the brand, but it all did fit within the anchor locker. So it is possible and the backing plates etc. should be in place areadyThe main issue will be getting the power leads out to the anchor locker, but when I pulled the speaker cables forward, they had routed them below the hanging locker on the port side in the V-berth, beyond that I did not follow the routing.Regards.Bruce.