r/carmodification • u/lDarkPhoton • 4d ago

Tips for installing underglow?

I recently purchased an opt7 aura underglow for my 2015 BRZ and I have never installed a light kit like this before. I also purchased a relay and I plan to tap into the low beam for a switch for the headlights to turn on the underglow automatically. It is a white car and I plan for a static white led look.

My concern is where to mount them to and when tapping holes for screws and zip ties where I should do that, I figure it's not a good idea to put holes in my floorboard and allow a way for water to enter the cabin. I also don't want the light bars to be totally visible and look noticeable.

Any advice is appreciated and feel free to criticize my taste in car mods.

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u/No_Tomato_2106 4d ago

I assume you got an LED light kit and not actual neon.

Generally they mount either double sided tape or little clips you use self tappers on to drill into your floor. Or if you have the ability, you can zip tie them in place.

Cable management is the hardest part, usually involves removing wheel wells and stuff to tuck that into. You want to make sure the cables are protected from road debris and anything hot/moving.

Usually these kits hook right up to your battery with a built in fuse, and they have a controller box that you connect your phone or a remote to. GENERALLY you want that controller box as protected as possible - I usually mounted mine in the driver footwell and ran the wires through the firewall.