Recording audio from amplifier to mobile

Recording audio from amplifier to mobile

I wanna record audio from an amplifier (this) via mobile. I have a 6.3mm trs and 3.5mm trrs jack. I wanna know how to wiring them for recording purposes. For example: 6.3mm left and right channel to 3.5mm mic or 6.3mm left/right channel to 3.5mm mic. Which way is the best and safe or any other suggestion. Thanks

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