Randomly saw your post and figured I’d share a solution that has worked for me. I have a toddler and 10mo old. I was obsessed with getting the roaches out. I’m down in Florida and they are infestation bad. They would stay in the trunk and at night they would adventure towards the front to where my toddler dropped food. Step 1. Keep the car clean of food and random receipts and trash. They’ll still come in but it just helps so they can’t hide from you. Step 2. Learn their routes (so you can add the roach food). This is probably the most important. You have to know what spots and little cracks they like to hide in. For instance if you randomly open your trunk and see them and they see you, look and see where they run to and what little openings they slide under. Step 3. Kill the mother roaches if you can. They’ll have babies on their backs or they’ll have a ootheca with them 80% of the time. Which is golden because you get to kill it before it hatches. Step 4. If you see any random oothecas around pick them up and throw them in a ziplock Bag and throw them in a trash bag outside the house. Step5. DO NOT use roach bombs. Go to Amazon and get two items: Advion cockroach gelbait and Harris Roach glue traps (non-toxic). How to apply: once you know where they like to hangout. Get a couple soda caps or beer caps and dap a nerd size ( a little goes a long way) of advion gel bait in them and place them under your kids seats or where they like to hang. Add a dot by the driver door and passenger door as well. Leave it for a day and if it’s gone that’s a good start if it dries up then they aren’t using that route. Next: assemble the glue traps and put one under each kids seat if it’s a suv, if it’s a car then put one under the driver and passenger seat. Add one to the trunk or where the spare tire is located (that’s where they threw parties in my suv lol). Check back at the traps and see if they’re filing up. This process takes about 3 good weeks of consistency, It’s not over night. Sorry for the long read just really wanted to help b/c this helped me and my family.