Well I found some more time and got adventurous so I decided to put in a security alarm. Seems good so far, won’t give any specs for security reasons.
Also the fm modulator that I ordered came today. I need it because my stereo does not have audio inputs. This one plugs directly in line with the antenna. It sounds good and doesn't interfere with other stations.
I also have closed off the center console air vents to put my screen there. I used a method that is basically paper mache. Roll of heavy duty paper towels and wood glue. With the wood glue it is seemingly unbreakable.