Generic volume/power button?

Was messing around inside my nuvision tm800w610L and ripped the flex cable for the volume power button. I can not for the life of me find a specific replacement online..ive seen some that are for phones that look like they could work but i have no idea an they are like at least $10 don’t have enough money to gamble…its just a 6 pin flex cable with 3 buttons…i call nuvision and there only solution is for me to pay to ship it to them and then they look at it and charge “up to $70” i dont wanna gamble with that either im poor.