So I recently purchased a swb safari 1989 24v, beautiful car although soon after purchasing the head unit stopped working along with the uhf(on a reducer) and front spotties, it happened after I charged the batteries, have checked the fuses under the steering wheel and they look fine, wondering if anyone has had a similar problem and what they did, not much of an auto electrician so any help or advise towards troubleshooting and making things work again would be great and I can't think of what to do or where to start