If your going to go to the trouble of doing this mod
@DJMattyT , I would encourage you to use RGB strip lighting. I ended up doing my install twice. First in red LED strip lighting, and then after two seasons, we got tired of red. So to keep the changes to a minimum, we went with the RGB (red, green, blue) strip lighting. It will come with a controller and remote control. That will give you the capability of selecting any one of about 8 to 16 colors with an ordinary remote control that comes with these kits. That way, you can have anything from a nice teal blue swimming pool color to hot pink and everything between. The remote will have settings to allow you to let colors just fade from one to another throughout the pallet, or flash, or you can select your color and dim to suit your mood. Be sure to make this a very waterproof setup, and use plenty of strain relief as we have plenty of vibration in a boat. Blue is a nice color to answer your question, but there are about 50 shades of blue too! Here are the three base colors in the cupholders as I built them. We always liked blue with a tad of green in it. These shots a twilight to keep the LED's from blinding the camera.
We always liked blue with a tad of green in it. These shots a twilight to keep the LED's from blinding the camera.
Here is only the LED's showing any light totally dark outside. This is the reason I don't recommend putting LED's behind speaker rings in the boat...they are blinding! Even down in the cupholder, plenty of direct light escapes from reflection, but it is much more subdued and not near as blinding or direct. Keep in mind, you don't want to see the LED itself, only the light coming from it indirectly.
And here is a typical controller and remote that you have to wire into the system.
If you boat at night, this is one of the best mods I ever did. The ambiance is incredible, and when it is time to go, just shift them to white and get cleaned up in lots of light to see what your doing! You will be tempted to keep them on while running. Resist the temptation, at the dimmest setting, your night vision will suffer greatly. We have to travel about 5 miles across a black lake in the dark, with fishermen here and there, that don't think they need to show lights at all. Keeping a keen eye out is imperative. I even lay a towel across the dash lights and turn the GPS down to barely visible, so that I can see a hundred yards or so. When anchored, eating, chatting, whatever, these lights really add another level to your boat. Here is the first link on Ebay I came to with the waterproof SMD 5050 strip lighting...
5M 5050 RGB SMD LED Waterproof Flexible Strip 300 LEDs + 44 Key IR Remote
This will do 16' of lighting without cutting into smaller sections. Good luck on the install!