First time post but I have been wondering around on the forum since purchasing my dads old 67 GTO back in August for his bday. I'm wondering what experiences and products people have used/had with radios/speakers/amps etc. I plan on getting a retro style radio (USA-630) with some power but am really unsure what to do beyond that. I have a good amount of knowledge when it comes to radio components but I have never put a system in anything that had 600hp under the hood competing with it. Any information is much appreciated!