On mine there was enough slack in the cables to swing them to the new location. So to answer your question, nothing really.
I built mini harnesses for the gauges and switches adding some new lengths of matching wire to them so that when I have to work inside the console, which hopefully now is never again, I can just unplug everything and remove the entire console and move it out of the way.
I used the connectors that Pantera-Electronics has that match the color and existing component connectors in the original factory harness.
http://pantera-electronics.com/wireharness.htm
They are accessible through the footwell covers.
The stereo has a removable face plate and the chassis removes from the mounting collar so the entire console kicks down reasonably now.
You still need to use a small chassis 1 DIN (shallow) though because there isn't much room (depth)internally in the console available.
Thanks for the compliment but I do need to pass that along to Mother Nature for a particularly nice piece of red oak. I just whittled it out with my Boy Scout knife.
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