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Has anyone tried it or know if navigation unit from 04+ LS is possible to put into an 01-03 LS??? Since size and appearance looks exactly identical...Only reason i would want to do this since my nav screen is going bad and it would definitely be an upgrade since 04+ has better graphics.
Someone has already done it on the GS model. All you need to do is replace the Navi ECU to a forth gen. You can read more about it in the GS forum. According to the author, its a simple plug and play.