Kwyjibo

the amp and aux battery are tucked under the driver seat, there was plenty of room, the line output converter is inside the passenger seat because the factory amp is directly below it easy to tie into, and sub in back

Yeah i had mine for 2 weeks before i had to take it back into the dealership to get a wheel speed sensor replaced which left a little bit of a sour taste in my mouth, but since then im just loving it more and more, its not fast and I dont want it to be, its just an enjoyable truck to take it easy and enjoy the drive. Welcome to the Forum and if you ever have any questions at all ... 2Late4u is right ^up^ there lol

This is what I did, which solves both of your problems:
 
Audiocontrol LC2i  They are about $70 on Amazon or BestBuy carries them as well.