Underwater Transom lights - best way to wire them?

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I have a different boat so mine are most likely different. Most the dash lights were easy as they just twist in and out. The fuel gauge was the harder one as I had to take it apart to remove and replace the light. Wasn't a simple twist and lock.

Dash lites are 168 - can't post link to this. I ordered several different sets as all the blue led were slightly different. Took me a while before I got a good blue match to the Rocker LED and Fuel gauge and deck lite.
Putting an amp in soon for the speakers I put in 2 years ago for some more power so I Can pull the bulbs to determine which ended up using.

Rocker LED is a 5mm blue - https://www.amazon.com/gp/product/B071S7QR6Z/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Fuel gauge was t3 or t4.2 (don't remember which i ended up using- i have a picture from the amazon site in the rocker switch upgrade folder on my pc that has 3 leds. The 4.2 has 3 led and the t3 has only 2 so i'm gonna have to say i used the t4.2) -
https://www.amazon.com/gp/product/B00KVWQJM0/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B00KVXTW0K/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Don't know what rocker switches you have but mine were contura II. You are supposed to be able to buy new ones with LED in them already but I took the long route to save money and I enjoyed modifying the old rocker switches.

You can take them apart and replace the bulbs in them with LED. I didn't solder mine as I used a wire wrap tool I had:
https://www.thehulltruth.com/marine-electronics-forum/346417-replace-bulb-led-contura-switch.htmlhttps://www.tacomaworld.com/threads/how-to-dismantle-and-swap-leds-in-a-carling-contura.101806/

You would also probably need to replace the switch covers with blue lenses to get a better effect. I actually also swapped the contura II out for contura 5 covers as I wanted etched covers vs printed covers as they don't wear out. Although The contura 5 work they are a bit wider so I had to do some dremel work and use some panels. Don't think i'd do it on a newer boat but on an older 2007 I didn't think it was as big a deal. But liked the fact I could have custom text done for the switch covers and pick out the symbols I wanted.

You can also get just the covers (if you replace the bulb with led yourself- takes work and patience which looks like you have from the work you've done). Or you can buy a new rocker switch or switch/cover combo.

https://newwiremarine.com/marine-grade-switches/https://rockerswitchpros.com/switch-actuators/

This is a picture of the panel I had to put in for the wider rocker switches. Ended up being a little bigger than the stock opening but think it was worth it for the custom etch switch covers. But again my boat was 10 years old and used so it already has imperfections to it.IMG_2462.JPG
 
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