well that's why i was asking if an 05 es330 wheel would work on the '04 es330 because on the lexus site it looks like the radios are the same for both years... just the steering wheel controls look new.
on my z06 i don't have auto-headlight activation like the coupe/convertables but by making one switch setting on the pcm (if you have access to it) you can activate it. also, i don't have electronic tire pressure sensor like the coupe/convertable but if i were to buy the sensors and edit another switch in the pcm, viola, tire pressure shows on the control display.
i guess i was just hoping that since some hw may be used on different models with extra features, that something like the audio controls are wired in, just not activated like the above examples.
you'd be surprised to learn what features are hidden just because they limit content from one vehicle to another by just a software setting change.
thanks.
don