No to fret. If it's an antenna problem, it should be resolved easily. When the unit is shipped from the factory, the Magnadyne is secured behind the dash with zip ties - that's the reason you can't pull it out with the U-shaped tongs. You have to partially disassemble the dash to get behind it.
If your unit has the latest software updates you'll find it functions quite well. I like the user interface. Some have replaced theirs, but I do prefer the mzgnadyne interface to other units I've seen. I had my maps go blank, called the factory and they were very helpful in resolving the problem with updated firmware - no problems since.
Ed (N4RWU) & Becky Taylor
Mistie (Walks 4-down)