Haven't had that on any of mine. Maybe it's a some additional connector in the wiring harness that could've been used to install a phone system. However, considering you have a 99, what ever is in there is well outdated since it was designed for mobile phone technology used 15 years ago.
Was USB even a thing back in 99? 🤷♂️ 🤣 I think it was invented somewhere around that time, but surely wasn't used in any automotive applications at the time.
Was USB even a thing back in 99? 🤷♂️ 🤣 I think it was invented somewhere around that time, but surely wasn't used in any automotive applications at the time.