evo tx with street chasis?

[94exa2]

hey guys, i was wondering if i can use an evo tx(with interchangable crystal) with a street chasis(with fixed crystal)...as in, my street chasis is band 4, could i use an evo tx with a #4 crystal in it, or do i HAVE TO swap to and evo board to use an evo tx? thanx guys...