There is a ton of information on US car forums as the car culture is a bit different.
When I was looking for 3rd party aftermarket radios, I came across on a US car forum, that someone said, the radios with the DAB button have the function, but you need to have it enabled via Lexus or you buy the USB cable and software so you can do it yourself after some fiddling. I'm used to do that on my BMWs so might look into it.
Lexus chargers, at least in the US a fortune for certain things. - It is not really Plug&Pray.
I was looking into 3rd party radios, because the SatNav is from 2010 and I can't find any info about a compatible DVD.
The prices on the bay are between £10 to open limit - and most of the sellers I contacted said it won't work. I don't like to waste money just to find out, doesn't matter if it's a quid or £1.000,-
A decent aftermarket radio for the XE20 sets you back around £450,-
You get Android Play, decent maps aso and they just plug in.
I will probably go that way as I will probably have the car for the next 3 to 4 years.
Atm I'm contemplating exhaust and 1 to 2inch drop - the IS-F is an inch lower and it does make a nice difference.