Sorry, I don't get it....
You say that you are traveling TO a very bad part of some town, but you want to know how to stay safe when you go there??
That is <<totally>> contradictory. The only way to be safe is Don't Go. By going there, you are simply putting a huge sign on your car that says - "We are young and stupid, please take advantage of us."
If you go to a known, dangerous place, then you cannot - ever - be 100% safe.