The SID speaker was nonfunctional in one of the 9-5s, so we swapped in another one we pulled from another car. The sticker says it was remanufactured. The remanufactured one worked perfectly. Ding'd at all the right times, and the pixels worked... for about an hour. Then we turned the car on, it got halfway through a ding, and it stopped. At this point I thought we had an electrical issue that was blowing the speakers. My cousin continued driving the car for a day, and he told me it would work intermittently. Like 95% no sound, and 5% sound on occasion. Given this was the case with both SIDs, I'm assuminng there's a wiring, or signal issue going on? (Though unlikely, 2 defective SIDs?) Is this a common or known issue, or will we be investigating this from scratch?