2019 Keystone Cougar 30RLS Antenna?

[Whit66]

Hello, recently I was on the roof of my 2019 Keystone Cougar 30RLS 5th wheel and found the underside of the attached antenna is cracked! First question is this for the FM radio? More importantly where do I get a new one and how difficult is it to change?

I would not have asked these questions if Keystone would develop a Repair manual for this rig.. Hopefully you find the attached picture helpful!

Any suggestions would be helpful! Thanks again