Hello everyone I just got my system all pieced together and need a little help with the install. I'm having a little trouble running the power through the firewall. I am trying to avoid drilling a hole and wanted to know if anyone has ran it without drilling. The other issue is I need to know what wires to tap into the radio harness to get a signal for the line converter. I have a 2013 GLS PZEV so I don't think I have any premium radio components. It would honestly be easier if I had a factory sub and amp but it is what it is.