It came today and I installed it pretty much as others have. I have not broken out the rear subs on their own yet, I wanted instant gratification.
One note, that radio looks like it is tilting back, and mine is the same. It has noting to do with shimming up. it fits perfect wit the frame snapping in. The issue is, the actual trim on the radio is sloped and thinner at the top, so it looks tilted. You can swap the trim around and make it closer to flush on the top, then then bottom is actually worse. PLUS, you cannot get the face plate to eject well when the trim is reversed. This might be a "feature" of the marine deck, if so, I don't like it, and might rather have a car deck, then paint the trim silver. The radio works great, and looks ok enough, but finish isn't all that great, but ok. It is a huge improvement over the factory one in features for the money, but not the perfect solution. I still need to route the mic for phone usage, I tested the Bluetooth audio from my phone and no issues, and the built in color yellow green is pretty close for the lights. As for the 2 different harness adapters I got, both Metra, the one with rca jacks, had red and yellow matching factory plug, and the one with just bare leads had them reversed. I left them as is, and just matched up wires by function, not color, so I didn't loosen a power connection.
Does anyone have spare pins/wires for the factory side? I may add in the rear sub wiring to the factory plug, so if I ever swap it again, it will all be in the factory wiring. There is 4 empty slots for pins in the factory harness.