My RetroSound Radio Install
This is what I used to wire everything up for a clean install. These kits aren't cheap, but I figured it would be perfect for powering the radio and also powering another device. I got it at 12vconnection on Ebay.
Not only does this Littlefuse relay box have two 35 amp relays that are fused bit also has a third fuse that is constant power which is perfect because you need a constant power source for the radio.
This relay kit was perfect!