HuiFei / KGL Replacement Parts Source

Hi all, after a couple of tinkering, I'm in need of the following parts for my KGL4 head unit:

KGL-7202RN KB-V00.2013-12-24 (SD slot with AUX)
KGL-7202 RN KB-V00.2013-12-24 (GPS slot)
KGL-MAIN-90D-V3 2018-07-20

I've tried contacting my seller but was advised I have to contact KGL directly for these parts. I tried contacting them over at their Ali**** account but have yet to get a response. With a lot of people modding their units here, does anyone have a reliable contact to purchase...

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