Antenna base 86300-0c090 installation

Tundra antenna base part 86300-0c090.

Does anyone know of installation instructions or a video of installing this part? Of course my antenna broke off in a car wash and in a failed attempt to remove the broke off mast screw, I wound up mangling the connection point.(don’t ask). I’m just going to replace the entire setup however it involves dismantling under the glove box to get to the radio and a portion of goes up behind the hand hold and part threads through the fire wall to emerge out the right fender.
I’m just looking for some guidance, thanks

 

@AthenaOffroad has one.
https://youtu.be/CTwSy6cdc4k?si=szr8ClZEVFus1nGy

 

Thanks!