Like the title says, I just finished installing an Alpine headunit from crutchfield in my 02 (SR5 V8). Went in with no problem, checked to make sure everything worked before I buttoned it up. Got the panel back on, and now the truck will turn over and fire, but then immediately die. I'm guessing I triggered some kind of immobilizer, but google is letting me down on answers big time. Checked my fuses, everything looks fine, but I do have on black wire coming straight off the battery terminal with a 20a fuse in it. That fuse was blown, replaced it and it blew again. Have no idea what this wire goes to, truck appeared bone stock as it sits but who knows. Anyone have an idea WTF is going on?