Okay so I have a 03 Tl type S. I installed a Power Acoustik After Market Nav unit. I read a thred on here on how to buypass the factory amp. So it worked. But each time I turn it on , or switch app , like bluetooth, to radio ,or anything like that . I have to push the loud/mute button to get it to work. It does, but im wondering buy, buypassing the facotry amp. This is the reason why im am exprerince in this probley. Does anyone think , maybe it would be a better idea to just run new wire from the radio, to the speakers? Do you think that I wont have this problem anymore. Oh and fyi, theres a big differnce between the speakers being powerd buy the app, then just buypassing it. Please help/.