I also have the same problem and yea man i broke the back plastic-cover of the amp fuse section too.. don't make my mistake... nudge that section forward away from the middle section of the fusebox a bit and there is a snap- shut lock a screwdriver will pop out and it should release the section... i just took out the alternator fuse and it does look bad, but im not quite sure.. i am going to the Lexus dealership tomorrow to get one and try it out... wish me lucks people