So a couple of weeks ago I bought a new stereo system off amazon to replace my old bose one. When I got the new unit, me and a friend went straight to work on it and just started cutting the wires. We realized a couple wires in that the colors didn't match. We were able to find the wires to the battery and tried to connect them to the new unit to make sure everything would work, but nothing happened. When we would touch the 2 wires, all the gauges on the dash would start flailing around and the lights would go on and off. As of recently I have crimped the wires back onto the default harness and tried using a wiring kit, but still nothing. I was giving up on it so I decided to just try and install the original unit back in for the time being, but now that one won't turn on. There is nothing that pops up on the display when I turn the car on. When everything is connected, the engine will not crank when I try to start it, but when everything is disconnected, it starts up just fine. I have already check the radio fuse under the rear bench seat and it wasn't blown. I have made sure that the harness is getting power and made sure that all the crimps were secure. I believe it might be something related to the security but I have almost everything I could find for the actual stereo, but nothing for the security because I don't know for sure if that's the issue. Any advice to get the original unit back in or the new one installed would be greatly appreciated.