Over the weekend, I tried to have a remote start installed on my 05 LX470. the guy, apparently certified as a master installer, ran away screaming. said he couldnt find the remote lock/unlock wires. he said the electrical panels just plain werent there according to the EWD. To his credit, it does seem like Toyota/Lexus decided to repackage a lot of that stuff in the later models, and not update any of the diagram layouts.
DIsappointing for sure. I was looking forward to warming up my car being in the great white north because, 'winter is coming...'