Jump start gone wrong?

[Octopi73]

So I made the mistake of letting someone else mess with my truck. My uncle said he needed it moved out of the garage and it couldn't wait. Evidently the battery was dead so he attempted to jump start it but it didnt work? Well I got there and put the battery on the charger and it started up no problem, bur the dims werent working and the radio no longer worked. It also appears that the battery is draining. I replaced the bulbs and that took care of that issue. Now stuck eith the radio. It is an aftermarket radio the previous owner put in, has power to both power sources for it. I have replaced and check all fuses. Im unsure what else to look for, everything else seems to be working.