Orange PI PC + 3+3 watt amp power issues

I'm connecting my Orange PI PC 3.5mm jack to this power amp: HiLetgo 5pcs PAM8403 2x 3W Mini Digital Power Amplifier Board AMP Class D 2.5-5V Input If I connect a 5v 2a power supply to the amp and a 3a 5v power supply to the Orange PI PC, it sounds great with no noise form the Orange PI and no distortion from the amp power supply. If I try to run the amp from the 5v pins on the Orange PI PC with the 3amp 5v supply, it will work, but there is a lot of noise from the main board and

I finally got a configuration that works. I got a 5v 4amp wall power supply to run the Orange PI PC I connected my amp power to the 2 5v header pins and 2 and pins. I connected the audio jack's L and R & common ground using the SMD pads instead of an audio plug (My plug was stereo and was shorting the video out to audio channels) I put the audio signals through a audio isolation transformer to get rid of the ground loop current and filter out the big pop when the audio codec

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