Hey guys, I just got an 06 GS300 (nice upgrade from my 00 ES). I just wanted to know if anyone knows how to increase the volume of the chime the car makes when you lock/unlock the doors with the smartkey. The volume on my car is extremely low. I can hardly hear it at times. I spoke to the local dealer and he said I would have to bring the car in to service to have that changed. Also, the car has Nav, if it makes a difference. Thanks for the help...

Can anyone help with this? Our local dealership is full of tools (both literally and figuratively) and so I'd rather not go there...