I'm looking to put 5% in the front but the back already seems pretty dark... about as dark the 5% on my other car but I don't have a tint meter to tell. Some research showed that it's 20% from factory but I have a hard time believing it so my question is, what have you all done in regards to tinting the car and blacking it all out? Have you removed factory tint and retinted? Tinted over factory tint? Or tried to have a shop match it up to factory tint? I think that the rear is 5% personally but that's just comparing it to my other car. Thanks in advance..