I own an old Maruti Suzuki WagonR (2009) which is not having a dome light in passenger area. I want to install a LED light there but can't locate the power cable coming from battery. Since the car is old, I don't have its manual (though I doubt such technical details are mentioned in user's manual) I tried to search on internet for a circuit diagram but can't find one.
Can you please point me in right direction?
P. S. Its having a dome light in driver's area but its not useful for the passengers sitting in second row.