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But I get to step 10 and can't find which plug he is referring. I've taken the radio and the navigation screen out, and can't find it. I've also found a thread on here that looks like he stole the first 9 steps from.
In case anyone is interested I found a company called prestigious society. They make products to override the Navigation/DVD lockout while moving. I have ordered one for my 2004 RX330. I will post results when I have it installed.