I have a Behr system and managed to splice to fresh air hoses and Behr
hoses together to have the option of fresh air or front AC.

Sorry, no photos of the process...but I remember cutting the two hoses at
angles and taping them together.

DID lose my radio location...which I don't like....plus had to relocate the
cigarette lighter due to the big Behr hoses and cover the hole.

Agreed it's a lot of work to put one in but ...Boy is it nice to have air
in your face ...as well as the back of your neck....when it's 95 outside.

Warren C.