Hi just wanted to post my results since ive been using this site to complete my project, figured i would return the favor. I do need some input tho my only thing is i need a better otg cable that is able to pas more power since the one i got is a 2$ amazon one that does not send enough power so if anyone has a good cigarette adapter and otg cable combo that they are using the info would be much appreciated. my nexus just dies after a week or so cant get enough juice to it to charge while driving thx and hope this helps
PS want to thank timur for his quick replies and all the help I am a NOOB have never rom anything before or cracked anything. all i can do is check my email and play day of defeat so it was a bit of a learning curve but nothing google could get me through, it actually was a lot easier then i thought. tech has come a long way to where even a monkey with google could prob figure it out.
head unit 150
nexus 7 2013 100$ (craigslist)
other(otg cable, headphone jack, plastic double din etc. 45$