I was able to get the engineering drawings for the 2020 G23/G25 electrical system sent to me by Nautique. If you understand electrical they can be pretty useful for troubleshooting issues. If you don't understand electrical then I would caution against even looking at them. If you would like a copy feel free to send me a private message with your email and I will forward you the two .pdf documents. I would post the pictures here, but unless you have the original pdf's where you can zoom in they are pretty useless as the documents are quite large.