Don't panic. Yesterday our robot left for a scrimmage at 5pm with ZERO electronics because we wanted to finish mechanical so no metal got in the electronics. By the end of last night around 10:30 we were 95% wired and ready to go after an hour the next morning.
Steps to help!
Get EVERYTHING laid out. Every wire, every jaguar, every solenoid, make sure you have EVERYTHING including connectors, and make sure everything is updated and ready to go!
Have a general idea of where things go and once mechanical is done, lay EVERYTHING out on the robot and start attaching. We grabbed mechical guys including myself to attach electronics while the electrical guys made wires, directed, and attached everything.
If you need anything mechanical: battery box, extra levels, attachment points, etc get them done now by mechanical.
Essentially have everything done and ready to go and check your list twice or three times! We got held up as we forgot a few items but we stayed focused and on task! Most importantly don't get flustered or angry, work together. I know it sounds cheesy but week 7 brings out the worst sides of people.
Whats more important? Getting it done right or getting metal shavings in a sidecar and dying in a match? Its a horrible reality when it happens.
After about 6 hours of wiring and debugging we got all this done!