Installing a fish finder can be simple or challenging, depending on the model you choose and your level of expertise. Many newer models come with easy-to-follow instructions and require little more than mounting the transducer and plugging in the power. If you're comfortable working with electrical wiring and have a good understanding of how your boat's hull is constructed, you should be able to install most fish finders without any difficulty. However, if you're not confident in your abilities, it's always best to consult with a professional before attempting any installation yourself.