jwp32750

I just purchased a AVIC-Z1 and absolutely love it! In addition, I purchased the ND-BT1 Bluetooth unit for the AVIC-Z1. I am having problems in pairing up the two. My Treo 700W recognizes the ND-BT1 Bluetooth unit, but when I type in 1111 as directed in the Pioneer manual as the passkey, it doesn't recognize the passkey and tells me that it is incorrect. Any recommendations?