I've installed mine, unfortunately I ordered a different unit, I did want the one from Erica Tan or same as yours.
Mine doesn't show car information on the right, instead a clock which isn't always correct, I've changed to mph so the dashboard says it mph but it's actually kph.
My remaining miles shows up on the right hand, but when on lexus screen the right side shows it in kph.
Aux sound is terrible unusable, so have to use BT and there is also a delay, this has also stopped me from linking my phone to the car for calls.
Some time on my cluster the nav will stop, this in the past use to help for speed cam warnings, when this doesn't show it also stops displaying which audio am in, eg aux, bt, dab.
I've contacted seller but nothing has been done, I've noticed a feed back on his page form last year which and he responded to the seller about a possible update, I've asked the seller for a refund but he says he'll try for a update.
Alibaba don't except PayPal and I've been told its hard to get your money back, if a fix isn't done nor a refund in the next week I'll be telling everyone to avoid.
I know the mxc and navi radier for the lexus are good units.