Agree with all above but if you are going into a busy a/f with radar, keep the r/t succint.
Establish contact first: "xxx App, G-ABCD"
When told to pass msg:
"G-ABCD PA-28 for VFR arrival. 10nm to N at 2000' on 1020."
The controller will ask for anymore info. Also, PLEASE listen out b4 Tx!!