Replace Antenna

Replacing an antenna should be easy but on my 2016 Tundra SR, I cannot get this thing off. I have tried looking up videos but haven't found anything helpful. I have my replacement ready to go and have tried twisting, pulling, wrenches, pliers, etc. Any help?

 

Replacing the whip or the entire base assembly?

I pull my whip off every time I go thru a carwash.
I use the tool that came with the truck.

Tool Pole Antenna - Toyota (863A2-0C010)

https://parts.toyotaofcoolsprings.com/oem-parts/toyota-tool-pole-antenna-863a20c010

 

I will definitely order this part. I bought it used and it was a work truck before me so the part is long gone. I am hoping I do not have to replace the base.

 

That’s just a plastic wrench. If you can’t get it off with a wrench that thing is just gonna break.

Soak it with some penetrating lube and try again with a wrench. It’s just a normal threaded base.

 

See post #3.

 

Did not want to replace the base unless I had to but I will if needed.