I had a Pioneer AVHP3300 that had integrated blue tooth and it worked great: answered calls, had a dial pad uploaded all contacts and notified of texts. I decided to upgrade to the larger screen unit AVHP4300 and the blue tooth add on. It only has BASIC functionality: you have to dial from your phone, no phone contacts, no text alerts. Overall it works but not a great addition to a really nice head unit.
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