Ok... so diving deeper on my lightly used X I took apart the T/B horn and I'm not sure of the reassembly sequence. That's the first problem. My second problem is the existing T/B horn is marked 23 (AirTronic) and I want to move to a Hitec (24) or perhaps Savox (25) servo and I cannot seem to find replacement horns anywhere on the net. Appreciate the assist in advance