Hi, guys. My Sharp gf-535 is now having some problems. When I play tape on it, the right speaker sounds muffled, and the tweeter on that side does not work. But when I use my Sony Car Connecting Pack (Which is a tape with a 3.5 mm plug), the right woofer works fine and the tweeter works. However, the VU meters always show a greater level on the left side than on the right side. But the box works without any problem with line in. Any idea of what happened in the box?