Instead of letting the antenna go from the solder right to the outside, loop it around and through the antenna clip on the pcb cover (you can just bare ly make it out in that HUGE pic
). This will keep tension off of the solder that bonds the antenna to the pcb.
Wouldn't it suck if your bit flew off the table and you caught it by the antenna, which snapped off, allowing the rest of the car to hit the floor and ruin your custom body work? I thought so.