I ordered one of these Xtrons units off of amazon yesterday. It's supposed to fit the stock opening in the 4th gens without a faceplate kit and is supposed to be plug and play retaining steering wheel controls. I have an 08 SR5 non jbl. The stock fit and unlimited customizing available were the big selling points. DVR dashcam, OBDII in the dash, offline GPS, and google play store will all be cool. It seems like XTRONS gives decent product support as opposed to some of the other Chinese units and there is a sprinkling of youtube review that looks decent. I'll let you guys know how it works out-
https://www.amazon.com/gp/product/B07F84ZMCG
If you want to go down the rabbit hole-
PX5 MTCD/E Head Unit Discussion Thread [Rock… | Android Auto
Update- Installed the unit.
So this issue was actually my fault but I will leave this info here for you folks.Major issue is the DVD player seems DOA. I have a replacement on the way from amazon and put an email in with xtrons. Takes the disk but it does not spin. Ejects fine. .
So, I'm an idiot. There are 2 screws on the top of the unit that are used to secure the optical drive. I failed to remove these even though there is a giant yellow sticker that tells you too. Probably should have been more sober, whoops.
Attached are photos of the install. No splicing needed. It is plug and play and fits perfectly. Looks stock esp with the toyota logo on startup
Wifi, bluetooth, work good. You can change button color to match stock, or any other color. Unit boots fast (20-30 seconds)and has a 1 hour sleep mode to make reboot instant on subsequent starts. Steering controls work. You can map them with short press and long press functions. Still need to test stock AUX. Google maps looks good, will test tomorrow. Built in mic seems good. I called someone and they said the clarity was fine. Google assistant works fine. You can use all the normal apps youtube, pandora, play store. The screen resolution is 800x480 which is lower than advertised (correct resolution is listed on xtrons website, but not on amazon.), but still looks good. Resolution is equal to the high end pioneers. Sound seems the same or better than stock. Still messing around with stuff, but it looks promising.
Overall initial impressions:
Pros-
Looks stock without those cheesy side panels and is unbranded on the front
100% Plug and Play
Layout and functionality is 100% customizable
Touch screen looks awesome and is very responsive
Unit is fast
Looks and feels quality
Xtrons customer support was fast and effective
Cons-
Untested longevity
Sound quality probably isn't on par with the $500+ units
Not exactly cheap
Overall I am really happy with it so far!