I velcro'd mine player and transmitter together, reason being I can get a real world 100 yards out of my .mp3/Nady set-up but only with the Tx clipped to my pocket, the 4' Nady patch cord not tangled or wrapped around anything metallic, and the soft antenna of the receiver dangling (with the speaker/Rx side up off the ground, suspended from a bush or propped up on a log-- this helps with better sound projection, as well).
I only very occasionally need or want the Rx side this far off, however. But reception can get dodgy if the Rx is set on the ground at shorter distances, it won't hurt reception to stretch out the patch cord. Zip-ties not recommended.
LionHo