Installing a DCC decoder is not as difficult as it may sound. You will need to solder some wires and connect them to the proper terminals on the decoder. Once that is done, you can then program the decoder to your desired settings. If you are new to soldering, there are plenty of helpful guides and videos online to show you how to do it properly. Once you have installed the decoder, please test it out before running your trains on it to ensure everything is working correctly.