I have a 2007 Centurion Elite V C4. When connecting the secondary battery I crossed the cables, made a spark. Hooked everything up correctly, reset the breaker in the battery compartment and the 50amp on the motor. I hadn't tried starting it before the incident so I don't know if it's the cause. Turned the key and nothing, no gauges, no fuel pump noise no click. Blower, lights, bilge, ballast, horn all work and the light on the stereo toggle lights but no stereo. Checked the fuses under the dash, all good. The 50amp breaker seems floppy when I reset the lever and I plan to replace it. Is there any other fuses in the engine compartment that I'm missing? Oh the blower works but the blower toggle switch light doesn't light up. I'm going to replace the ignition as well. What am I missing? Any ideas? Thanks!