ok so im a new owner of a 02 Sonata GLS and ive put in a kenwood single din stereo and a kenwood amp+ 2x 8" subs now as im running the subs ive noticed they are only booming at 10-20% power and so ive looked it up and what ive found is something ive never dealt with and that is a factory amp in the back of the trunk right side so my question is how would i bypass or as some call it "splice" into it and if it matters i have speakers in my back dash and 2 in the front doors and 2 on the doors were the side mirrors hook in and im a new guy at car stereo equipment ive been having my friend teach me so now im coming to you guys :)