I have an Isuzu Rodeo. I was having what I considered simple Battery issues. I had jumped it and it started fine. Later when I went to leave, I had to rejump it. I asked my son(big mistake) to make sure the ignition was off. I connected the cables and had many sparks. Ignition was on. Now when I connect it to jump, most stuff comes on ok, but no Radion and it will not respond to the jump. Does it sound fried? Lights work, dummy lights on panel work. Just no response and no radio. HELP!