Welcome to the forum Fishnmagician.
When the A & E (Dometic) Power Awnings were first introduced they didn't have adjustable arms
as they do now. Our previous 5th wheel (08 model, built in 07) didn't have them either. Around
2009, Dometic provided a retro-fit arm kit, upon request & "free of charge" to RV owners. I don't
know if the kits are even still available, but your Keystone dealer may know or may still have some.
You might also contact Dometic customer service:
http://dometic.com/enus/Americas/USA/RV-Products
There were 2 different retro kits, based on the awning size/weight... you'll need to provide the
serial numbers (located 'somewhere' on the awning arms & might be INSIDE the cupped portion).
Hope this helps!
Terri, the Chevy co-pilot