So I got an SE parts truck for my S 03 and it's got tons of features that I don't have. I have already got a bunch nice trim pieces and the rear step is a nice touch already, just need to adjust the height so I't doesn't hit my D ring's on my bumper. I just need help figuring out if I can add the subwoofers on the tailgate just plug in play or I think I need to get the amp too? I thought everything was prewired but I don't see the wire harness there to plug the subs in.... And if anyone has advice on how to transplant the "chevron?" side steps, I got them off but there's like giant bolt/spacers on the donor truck that I'm not really sure how to handle. Thanks guys.