lex-300-gs Posted October 7, 2010 Share Posted October 7, 2010 hello every one im new here and am in desperate need of some help....i have a 2000 gs300 with factory nav and i want to put my aftermarket deck in but cant due to all my heater controls being intergraded in the nav....what do i need to do to make this work.... Quote Link to comment Share on other sites More sharing options...
1990LS400 Posted October 8, 2010 Share Posted October 8, 2010 You need to buy an HVAC control module from a non-navigation 98-05 GS. Check eBay for a used one -- should cost you less than $150. Many people have done this and said that it is a "plug and play" swap. Quote Link to comment Share on other sites More sharing options...
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