As the title states I started a new double din stereo install, it worked fine for a couple days until the wire nuts on the 12v yellow and ground wire fell off. I'm assuming one of them hit something and jacked it up. So I checked and replaced the bad radio fuse and now got a new stereo unit. Thing is, now only the stock radio works. I put a multimeter behind the stock harness and what I assume is the power (yellow wire) but got either all 0's or nothing above .02. Checked all the fuses underneath the hood and they all look fine. Don't know where to go from here, any advice?