Do not EVER consent to a search. In every western country the law explicity states "refusal to consent to a search is not probably cause for a search in and of itself". if you are moving shit in your car regularly: Keep it washed. Check the bulbs all around and replace any that are damaged. Get any loud noises repaired like serpentine belts squeaking or bearings humming, bushing causing creaking sounds, etc. You don't want there to be any reason to take a second look at the car. Keep the interior clean. Period. A police officer's first impression of you goes a long way in avoiding hassling. Dress well, not "im a rich punk" or anything like that, but think business casual, harmless working guy attire. Be clean shaven or very trimmed facially (70% of people find beards more suspicious than a clean shaven face, because it automatically conveys the impression of hiding one's face).Keep your shit in your trunk. out of sight and the hardest place to access. When you are talking to the cop, roll down your window about 4-6 inches so you are able to respectfully converse but not enough so he can reach in or be physically threatening. If he asks you to get out of the car, roll up your window, lock the doors after you have left the car, and put the keys in your pocket. If the cop insinuates that he wants to search you, tell him "I don't consent to any searches of my body or my property". Cops will usually follow this up with "well, if you have nothing to hide, you have nothing to worry about, right?" Just tell him "I don't consent to any searches. Have I done anything wrong? Am I being detained? Can I leave now?" Just keep asking him those questions and eventually he will have to let you go.Remember you want to blend in. I feel bad for anybody who's a physical minority as you have it way rougher with the cops that us white guys do. that being said, dressing like a thug, regardless of your race, and blaring loud music or driving obnoxiously is going to put you on a cop's "punk" list. you will not get the respect for your rights you do if you dress like what one typically pictures as a "productive member of society" and are driving like a "responsible citizen" with a low-key car that's well maintained and isn't violating any safety statutes, there is no reason you ever should get searched.Just be smart. Everything we do in this game is a numbers game. We are constantly cruising the odds, playing with fate or just plain bad luck. Tip them in your favor. You'll never have a reason to regret it.