I agree with previous posts...metal chassis and receiver wire close to it is not a good look really..good pointers from others suggesting checking receiver wires for chinks..move all radio gear closer together and get some plastic around it! also coil your cables around a pencil (leaving a spiral on all wires). This not only saves space but also avoids any sharp angles (and therefore potential chinks) in receiver wires.
Try those suggestions and good luck mate...truggy looks really cool aswell
good words from all who have posted so far
Warm wishes