Hi Danny, please let me know if you have a replacement Satnav unit for a 2002 IS300. I'm pretty sure that the head unit is fine, I think it's the unit in the boot that is failing.
If so, how much?
Many thanks.
Try these people - they sell kits which are easy to install - http://indashpc.org/new/index.html I bought & installed a GROM kit which connects my IS300 stereo to my iPod and gives me bluetooth to connect my mobile. Cost less than $150, and took me about an hour to install.