mike730 Posted August 2, 2010 Share Posted August 2, 2010 Heres the story i have a 99 GS 400 and I have navigation. the sound sucks. I want to put a after market radio in the car. Now the navigation is separate from the tape deck. I went a brought a harness from best buy. Now the two connectors fit with the connectors that came out of the tape unit, but there is a third connector and it works with the navigation. The climate and navigation wont work unless this item is plugged in. Please assist. Quote Link to comment Share on other sites More sharing options...
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