This has been an informative thread actually, I had no idea there was an amp in the back of the FRS. Does this mean I can just plug a trunk sub into that and not have to run cables up to the head unit? Or can that amp be easily swapped out for another amp with additional ports if it's already maxed out? Pardon the lack of audio experience.
I'm considering just adding a sub to add a little extra oomph but I'm not unhappy with the rest of the stock audio gear and I have a light budget.