im planning my equipment in my 2018 ford f150 xlt,it has the 8 inch 7 speaker non premium system, I believe it does not have an amplifier and I want to know if any of you guys know what I should use to keep all of the functions associated with the stock system? I am planning on getting a helix dsp3 and need to know what exactly I need to have in order to accomplish this, thank you for any help you guys can give