Lots of changes, all sound good. I am not sure what your Android double Din Radio is , i will look up.
we just picked ours up in July, last owner added lots of items,like you he changed every light to LED,which really saves on the 2 house batteries he installed. New 12 v tv with dvd. I added a 360 roof vent to stop the back suck on the black tank when we open front windows while driving.
Remote temp sensor for the fridge so don't have to open fridge to see if it is working, he also added cooking thermometer gauge into the side of the hot water tank to keep eye on water temp for showering ( so you know when up to temp you want to help save water )
Monitor to keep eyes on the house batteries, shows all info , usage time left, charge left, how much being ysed at that second and more i have not figured out yet
Now just get the sleeping better, i just fit from side to side ( but don't streach my toes ) We don't need the extra bed , just us and the girls, so i have to convince wife about removing the 3rd seat to make more storage
Thanks for the info
and the Girls