Hello I’m new ! So I have a Jeep Cherokee Xj and I noticed the starter fuse has a green wire fused to it. I just replaced my radio fuse so I never seen it before. Is this bad? Dangerous? I’ve had it almost a year... also I noticed my USB port isn’t working so I checked the fuse and it has white stuff inside it , like it’s eroded . It’s 25 amp, I have a 30 amp that would fit it , can I use that? Thanks! Not much of a car girl but I do what I can.