Pic´s of different Radios can be useful for us, right? The texts are borrowed from the ad:s, so I can NOT guarantee that everything is correct.
From an ad:
The visible characteristics that identify this radio as a genuine Barracuda/Challenger radio are:
1) The location of the antenna port is on the bottom of the radio. This is unique to E-Body radios only.
2)In the lower corners you will see two small "platforms" extending outward , with the alignment pins in the middle. Notice the "platform" on the left is a rectangle shape , and the one on the right is a square shape. This feature is unique to E-Body radios only