Installed 4 channel amp on factory head unit and speakers
I bought an Alpine ktp-445u 4 channel amp today for my 2013 f150 stx supercab. I'v wired it up to my factory head unit to power all of my door speakers. All of the door speakers are stock but I will be upgrading soon probably to Alpine type R. It is amazing how it changed the sound of the stock speakers! Really woke them up but they do need to be replaced.
Last edited by Nayriles89; 08-12-2013 at 11:04 PM.