[Hurricane145]

I have a 2005 Silverado Z-71. I would like to run power cabling direct to the battery for a ham radio transceiver installation, about a 10 amp draw at maximum. I was wondering if anyone has found a somewhat convenient way through the firewall to run power directly from the battery for your high power stereos or whatever other accessories you chose to install. Usually in the past I have been able to find a plastic or rubber plug in the firewall somewhere that was for an uninstalled factory accessory that I could pass the wires through but no luck with that as yet in this truck. Everything seems pretty tight and sealed up well on the firewall. Any ideas or experiences would be appreciated.