I have an OLD unit inside a project Vanagon of mine. It's hooked to an amp and sub etc but the screen is dead on it. Other than that it works fine. It's so old i doubt there's parts out there for it but I'm wondering if there's a repair guide or what ever. I'll likely replace it at some point down the road when I have the van set up how I want it but for now wondering if there's a simple "check this solder point" type DiY or some thing. Cheers