Hello all simmer

Finally I install successfully civa nav panel on my 707 1.3 v
I follow the tutorial from youtube how to setup align ,add way point ....
I wait till green light goes off , take off switch to AP on nav1 setup to 1st way point freq and course as well switch NAV on autopilot and airplane always fly to hdg 300 deg. newer follow the route which is setup on civa.
I program 4 way points I also check distance between each one and is ok.
Why airplane don't want to follow the route?
Please if somebody can do any video tutorial which show how to successfully setup civa nav system I will be very grateful.
Thank you in advance and sorry for my poor English .
Kind regards
Chris