Either buy the one you know will work or
get your hands on every Jammin radio tray
made and see which one will work the best
with the least modifications to install.
You may have to drill and counter-sink
one or more new holes in the chassis.
If you're not able to do that, just buy
the one that works.
On another note, let me look back in this thread
to see if I can figure out just what plastic part
you are missing. I may seem a little rash and short
tempered with some people on this site and to
show you I'm not all bad. I will dig through my
extra parts and if I have it and I will mail it to you.
PM me your complete address and any other info
needed to get the part to you.
It's going to warm up here today, so i'm going out
to burn some nitro, I'll get back to you tonight.