The other day I was flying to KPSP (Palm Springs, CA, Class D) which
is in a TRSA which I was not participating in. I was about 10 miles
out and called tower to get setup for landing and they told me to
contact approach. I switch to approach and told them I wanted to land
and the controller started freaking out on me saying I should have
called him a long time ago, etc..... I was then sequenced to land and
all was fine.... My question is that since TRSA is voluntary why did
the tower switch me to Approach. I flyout out of another Class D
airport and everything is handled with the tower. I thought I was
doint things correctly... Thanks for your help.