12V Socket Holder

I designed this for a 12V socket dongle I purchased on Amazon. I originally tried a few sockets that had other features, but they ran too hot and were defective/prone to blowing fuses and the circuit breaker. You can purchase the same dongle, or make sure the one you have is about 27mm in diameter.

https://www.amazon.com/gp/product/B00G8WLW2Y/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1

With this dongle, there is no glue or additional anything required, except mounting hardware. The holes are counter sunk 25mm.