ssgpate

Hi im new to the site, but not new to Fords. I recently bought a 2004 F-150 4.6L V-8 reg cab STX then added chrome step bars, full exaust from manifolds back, chrome locking gas cap, tinted windows, installed 2 12" subs, DVD double din Stereo, power door locks with FOB. I have a Vortech head unit i can get pretty cheap, and would like to intall it on my F-150. I dont mind Fabricating ETC Has anyone went this route? what typical problems did you have to overcome. I would just like a little more power for towing. Thanks