Hi I'm david.and I'm new here .but all the same I'm begging for somebody to help me diagnose this issueI tried to install a line converter to my factory so I can run an amp and subwoofer..I was testing and auxiliary power source off of the key ignition and ground it out causing a little bit of an arc electrical system is haywire I'm trying to determine BCM PCM or pass lock system or even the ignition control module please help