2001 Boxster S running fine. Today during drive through NC mountains starting getting a random beep from somewhere under front dash. I swear it sounded like it moved also. One side, the the other. Tried hitting every button, clock and speedo set switch. It is driving me nutz! Just now took my grandson to McDeez and there it was again. Seemed to happen when I accelerated in first and shifted to second, but then again today it seemed to just happen whenever, although I wasn't paying attention to tach when it did. The last few times it did it seemed it was coming from passenger side dash.
This is not horn its a short "beep" like a watch battery running low or something. Nothing in car under seats or anything. Anyone ever hear of anything like this? How does one go about troubleshooting this?