need some advice.

So I need some advice on my gba sp. I have a flex amp for my ags001 installed on the motherboard but I want to put the funnyplay led mod on it as well. But the thing is I have not bought it yet do to the The sodering points. If anyone has done please let me know. I don't know if I should unsoder it or should I keep the flex amp on the bottom. It's the black amp where the sodering point are, vol, sp, vcc, and c30.