Attaching amulets in front of car cockpit is a very interesting phenomenon. In Malaysia, I can't remember since when I first started to see one in my friend's car, then in another friend's car and another ... Until finally I went to Bangkok and saw the same scene inside a Thai taxi.
You will normally find the below items inside a Thai car, hmm... of course at this present moment, not limited to Thai cars alone, perhaps also in some of the Malaysian or Singaporean cars as well :)))
- Normally behind the driver's seat as shown in the second photo. These yants are normally drawn and blessed by senior monks. I was told that you can find this yant drawn on all sorts of vehicles: cars, boats, aeroplanes even up to the military vehicles.
- All sorts of Thai amulets when put inside a car can ensure the safety of the driver and passengers.
- The Thai show their utmost respect to the Thai king, and believe that their king will protect them from all harms.
- As shown in the first photo, garlands of flowers are hung in car to pay respect to the holy yants, amulets and the King.
Oh yes, just a side note; the above practices are only observed by Thai Buddhist alone. The Christian and Muslim do not follow such a custom. I am sure you will notice the differences.