There are a row of automotive parts shops between the Shell Petrol Station and the small Chinese Supermarket, on the left side of Petchkasem Rd heading North. One of them has a bunch of electrical stock. There are also several automotive electrical repair shops on both sides of Petchkasem Rd, that sell parts. Take that photo with you!
May you be in heaven half an hour before the devil know`s you`re dead!