I bought a powered underseat subwoofer. I'll be running my power wire from the battery through the firewall. Through searches on this forum I know I can tap into the speaker wires through the b pillar. The line out converter I bought has a remote wire on the output side of it and needs a 12 v constant. So my question is : Is there a 12v constant in the b pillar I can tap into or what would be the best way of going about doing that? Any help would be greatly appreciated.
