I am finally ready to wire 2 10" subs in a down-fire box from Subthump in my 2000 Silverado. I am running 4 ga wire to my amp. How do I put the power wire through the kick panel and under the door sill to run it back to the amp on the back wall? Are they just pull up or is there a trick to remove these parts to put the wire underneath? I don't want to pluck up my truck. I know I have to run the power wires down one side and the amp connection wires and the remote wire down the other side . Any other help would be greatly appreciated. Thanks in advance.