Hello! I would like to add one end stage, one bass box and 2 additional speakers to the hut rack! I would like to have the following questions and maybe someone can help me!! 1. How and where do I best put the cables from the battery and from the radio into the trunk? 2. What kind of speakers fit into the skin rack? there are any installation tips by reason of reinforcement etc? 3. How do I fix the bass box? Just put it in the trunk? So that’s it for now!! Thank you for the answer!