Firewall bypass

Thanks for the reply. Is there a need to do that if everything is good. The reason I ask is I will at some point put the volt meter in the cluster and attach the two wires. But is there a danger to running in my current configuration until then. Also should there be a fuse in line to the battery on my 8 gauge wire. 65 amp alt will be added with the possibility of adding a much larger alt to deal with the stereo that’s going in.