Well @SurrealOne told me about using a voltage regulator. I made a full diagram for the integrated circuit I will need to build to make these lights work. Hover over the image to see better. It will use three SPDT relays to switch between running lights at 5v and brake/turn functions at 12-14.4v Normal function will be running lights then it will switch to functions.
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I've done some pricing on the IC and its gonna cost about $70-80 including prototyping it. The parts are cheap just its a lot of them. This wont be built until around March. Each LED strip costs about $3-4. Already got one for close to free just need 4 more. And even after all this and building a front light bar mount I will save over 100 dollars. Can't beat that!