Replacing 2D Fluorescent tube with new 84 LED bulb

I have a set of led lights that go into my car and the wire isnt long enough. I opened them up to extend the wire and what i found was a red wire connecting to a switch and a green wire connecting to a diode. Is it safe to lenthen the wire? and how would i go about doing so? should i put to new wires in the place and connect the other ends to the red and green? or just sepperate another wire at the same place those are? neither the red and green are sheilded seperatly



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