I have a 2001 eddie Bauer expedition. I have removed the factory enclosure and amp for the sub. I bought a hi-lo converter and wired the positives to the positives and negatives to negatives. I am using the factory battery wire that was running the factory amp as well as the factory ground. After all this time and effort the stinking subs still don't work. Oh yeah and I have 12v going to my signal side of my aftermarket amp. What am I doing wrong? I only have the factory head unit. Any help would be great. Thank you.