You have to disconnect it from the engine side. There are white and black connectors under the master cylinder.
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The white part is the back part of the convenience center and has two screws holding it on. One is to the upper right (hole in photo above) and the other is to the lower left.
The black connector has a torx screw in the center (red arrow) which I think is captive. Loosen it and the black portion pulls off.
The white part stays in place and is pushed into the cab, disconnect the clips that you mentioned on the convenience center to separate it in there.
There are a few harnesses that attach to the white part that may need to be removed first, depending on how much you need to push the white part in. Those are the harnesses to the wipers, cruise control and a few others. One is tucked way down under the brake booster.
Removing the fender well bolts holding the relay center allows it to move out of the way. Might help with access.