​One of the common questions we get as installers is "Hey what alt/batteries do I need?" I've answered this a few ways but I've always had a good idea of what would be an easy way to define this yourself. While this may not be the end all answer as various companies rate differently, there are efficiency changes between amplifier types and varied ohm loads etc etc. However I find this to be a simple solution for the common installation.

When finding signal to convert your OEM high level signal (otherwise known as speaker wires or your amplifiers output) to low level signal (RCA connections or your amplifiers input) it is important where this is found. Unfortunately this is commonly done incorrectly and you may be limiting the signal to your aftermarket installed system. Or worse; you're not even playing a whole range of frequencies 🤔