That's an easy one, using conduit is always a better option, and in most European countries is a requirement. Here in the UK, inferior installation standards look more towards cost than quality. My recommendation.....conduit, all the way, all the time.
If the existing conduit has not been intentionally or accidentally interrupted it is still an adequate ground. If you are in doubt about this or if a test proves that it is not grounded, new conductors including a new ground wire can be pulled inside the conduit. If the existing conduit is flexible conduit and it has "jake" type twist connectors, rewiring with a ground is advisable as those type of connectors do not maintain a good ground connection.
I'm not sure exactly what you mean by "how to rewire a USB," but I'm guessing that you have a USB CCTV camera and are trying to figure out how to reroute the wiring. If so, that isn't difficult. You can simply unplug the USB cables, rerun them through your alternate routing and use USB extension cables to increase the distance and voila, you should be good.
No they should be fine.
The rewire a panel box you will need to hire a trained electrician. This is a job that should not be handled by untrained individuals.
You should have 4 cables that hook up to the solenoid. Once the solenoid is installed the positive battery cable goes to the left side. The big stud. If you're looking straight at it. If you are standing over it it will be the front side of car, or your right side. There should be another cable that runs opposite of that side to the starter. There is only one place on the starter for this to hook up too. Make sure there is a good connection there. The 2 smaller cables are for ignition and start. The smaller hookup on the left side (same side as battery positive) should be your S, the other I.
eHow is a great resource for topics like this, with articles like "How to Re-Wire a Lamp," "How to Rewire a Lamp with a Rotary Switch," "How to Rewire an Old Lamp," and "How to Wire a Floor Lamp."
Rewiring is easy
which model?
Yes, if you rewire the bed and rewire the plug on the wall to 220 volts.
Type your answer here... Why are you wanting to rewire the brake lights?
The end sockets have to be rewired. The schematic for the rewire is on the ballast label.
The life span of the wiring in a typical house is between 60 to 80 years. The main electric service should be replaced about every 30 to 40 years.