It's soldering time—and it's as easy as can be. Only two connections have to be desoldered before we can remove the old chassis, and they're both easily accessible.

Before you start, make sure to take note of the polarity of the cables: The connectors on the chassis are marked with a "plus" and "minus" symbol. Also, one of the two cables will be color coded, respectively. Document which cable belongs on which connector before you begin.

Heat the soldering iron to its working temperature of 400 degrees Celsius and hold the tip against the first solder joint right where the solder seems thickest until it starts to liquify.

Remove the cable end from the connection bracket as soon as the solder softens. At the same time, remove the soldering iron from the connector. Repeat this procedure with the second solder joint.