I have searched on here for a few hours now and have not found any detailed answers. I have a JL 8w1v2 sub that replaced the blown factory sub. I realized that it is not putting out the sound it is capable of and realized I need to replace the factory sub amp. I have no idea how. I have been shopping and people are telling me $150-$200 to install. When it comes to mechanical things I will do it all myself, electronics are a different story. However, when $150 is involved, I would like to do it myself. So the question is, can somebody tell me what I materials I need and what needs to be done as detailed as possible. You will be a great help. Feel free to suggest an amp as well. I will not need much. To be at optimum performance my sub need 125 continuous RMS. Thanks!!