I had a problem with my '99 Miata needing frequent jump starts even though the battery is only about 18 months old. My mechanic did a parasitic load test and found that my aftermarket stereo was responsible. He pulled the fuse and since then the car starts like a champ.
So my question is, how can I know if this is going to be a problem with a stereo? I wouldn’t mind replacing this one, but how do I know if a new one would do the same thing? I looked over the manual for the one I have and it doesn’t give any useful clues.