Re: 2002 GS430 Navigation unit (trunk)
ok the best i can do is the denso help line, 888-668-2900 and i believe the first phone menu option is warranty and non warranty repair info. ive never dealt with them but i do know they are open only during business hours. not that it matters but sometimes there is a denso or toyota part number when the product is made by nakamichi, pioneer, fujitsu-ten, etc. but its usually pretty obvious if you look around the unit. many of the nav units were f/t but im not sure about yours. in any case denso does the support so thats your best option. also, i know weve sent old engine ecu's off to electronic repair specialists and had good results, id bet theres a good chance they could help you as well.
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