human
What are the advantages and disadvantages of having a compass in your car?
assistant
Advantages: 
1. Compasses can be used to help navigate unfamiliar terrain or areas with poor visibility.
2. They can provide an indication of direction, helping you stay on track when driving.
3. They can also assist in finding your way back home if lost.
4. A compass is often more accurate than a GPS system.Disadvantages:
1. They require batteries which may need replacing periodically.
2. They can be difficult to read at times due to glare from sunlight or other bright lights.
3. The needle of a compass can be easily deflected by magnetic fields.