No, the fuses will be right under the steering column, wired into your ignition wires. They will be the thicker wires from the viper module. The only wires that will go through your firewall are the Tach wire ( I use the voltage sense instead ) the hood pin wire ( which disables the remote start from starting while the hood is open ) and the alarm horn wire. There should be NO power wires going through the firewall or anywhere near the fans. If you could get some pics of this wire, it'd help a lot.