Bought iPhone FM Hands-free car kit and dust stopper.

Quick response and fast delivery on the same day instead of waiting next day. Very satisfied with services.

Just one question on the setting of the FM transmitter, every time I set to 107.9MHz and everything went well. But next time I started my car again, the car kit of the FM frequency will be rest back to 88.1MHz...so I must set the frequency back to 107.9MHz to avoid clashes with radia stations frequency. This for me is quite a hassle. Is this how this carkit supposed to work like this? If not, appreciate some guidance to configure a permanent frequency.

Thanks and Regards,
Anthony