Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Main Processors: 4 Core 1.8GHz, ROM: 32GB EMMC, Theme: Free wallpaper replacement, Installation Space: 2 DIN, System: for Android 8.0, RAM: 2GB DDR3, Screen size: 9 inch, Screen resolution: Maximum support 1920*1200, support moving wallpaper, LVDS display interface, Operation mode: Capacitive screen multi-touch, CPU: Alllwinner
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($145.29): BGCarAud3
2. ($160.67): BG00c906
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGJHITUO, BgAuMotor, BGCARPA, BGAutos, BG3967, bGhOnEy10, BGJulyCAR01, BGStereo12, BGCARELEC, BGYUEA99, BGCZ6990, BGAFF10OFF, BGCuponation10, BGSABAUM26, BGHONEY2110, BG10OFFAFF, BGwhielabel, BGHAudio2, BG10OFFAFF1, BGStereo63, ADMITAD2212, 2022ACTIESNL, BGCarAud1, 8Couponsde, MVC8SPRING, 8BGwbg2204
(I don’t think these’re gonna work, but you can try ’em out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – YUEHOO 9 Inch 2 DIN Android 8.0 Car Stereo Radio 2/32GB [EU] ($-3)
Price history and price alert
Here is price history (for all/most countries) for YUEHOO 9 Inch 2 DIN Android 8.0 Car Stereo Radio 2/32GB.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).
. Sorry, but there’s no price history in my database. One coupon is available. Cool!