Well i figured its finally time to get some jammers now that im living in Louisiana and I am constantly being hit with laser. Just lucked out of getting pulled over on my 4th laser hit in the last 5 days. I'm know the basics of laser jammers but, I know nothing of which brands are the best, etc. I was wondering if you guys could give me some advice on which jammers to get for driving mostly through out the south from Louisiana to Alabama. I was also wondering if all 4 are necessary or if just the 2 for the front would be fine.And if the install is hard ( I have a 09 dodge challenger) and i also have a V1.