Some dhp's won't work with the 04+ cars. I have only found 1 of 3 that will work with mine. I had to buy hptuners. You cant edit vin's with dhp, but you can with tinytuner. It's a free program and it saves it as a .bin file. As far as the bcm, I've never gone and looked for it on my 04, but it's usually just north of where your left foot would be while you're driving