They'll fit but they won't work, they have different circuitry, or basically the 07+ is devoid of a circuit board and you just put bulbs in, whereas the 06 and older has a circuit board that holds the bulbs
The 07 and 08 lights are a little bigger than the 06's are. Before Recon came out with the 07-08 lights, their instructions said to use a marine grade weather stripping around the edges of the lights due to the gap because the 06 and older lights are a tad bit smaller.
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