One Of the easiest upgrades you can DIY is these headrest monitors. Total time to install 2 hours.
link for Headrest TV:
https://www.amazon.com/gp/product/B00U0R7EWK/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
HDMI to RCA Converter:
https://www.amazon.com/Dinger-Converter-Compatible-Composite-Adapter/dp/B07FTN5NN7/ref=asc_df_B07FTN5NN7/?tag=hyprod-20&linkCode=df0&hvadid=317609719188&hvpos=&hvnetw=g&hvrand=12871217620201126814&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9022936&hvtargid=pla-663131576157&psc=1
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Hey bro I'm completely new to this and confused lol.can you pls put the link to everything you use?