• Replace Alpine part #: KCE-433IV KCE-237B. • Compatible with Alpine CD model • Adopt bluetooth 5.0 protocol, compatible with 2.0 3.0 4.0 other versions of bluetooth protocol. Choose AUX in your radio, you can play music from the phone in your car.

Replace Alpine part #: KCE-433IV KCE-237B. Compatible with Alpine CD model Adopt bluetooth 5.0 protocol, compatible with 2.0 3.0 4.0 other versions of bluetooth protocol. Choose AUX in your radio, you can play music from the phone in your car.