Opinions please

Hello All,

Forgive me in advance if I'm posting this in the wrong section, but I'm hoping to gather some feedback of a couple of audio choices and which is the better way to go. I currently own a motorcycle and am adding a stereo and amp to be paired up with a pair of 6inch 200Watt/ 100RMS speakers that are mounted to a fairing for listening while on the road. My options are as followed:

Option 1 - Philips CEM2100; max power output 50Watts x 4 Channels, Continuous power output 22Watts x 4RMS (CD Player/AM/FM/USB Port)

Option 2 - Pioneer MVH-X380BT; 50Watts x 4 Channels, power output 14Watts x 4 Channels (Bluetooth/AM/FM/USB Port)

Regardless of the option, I will also be adding an Alpine Mini Amp, KTP-445U; 45Watts RMS x 4

Does the addition of the amp override the original output by the head units or is my total power output a combination of the two? Should I have gone with a stronger amp or is this good enough for the speakers I currently have?

Thank you in advance.
Vic