[SyncEvolution] Suspect "PRODID:-//Synthesis AG//NONSGML SyncML Engine V3.4.0.6//EN" messing sync with BT car audio

I have succesfully synced my Evolution contacts to a Nokia E63. Now, when I try to re-sync the E63's contacts over to a Pioneer DEH-P7100BT car audio, I can't. Unfortunately, neither the phone nor the car audio provide helpful logs. Looking into Evolution's addressbook (a Berkeley DB), I notice every contact has a line with the following: PRODID:-//Synthesis AG//NONSGML SyncML Engine V3.4.0.6//EN Everything else looks OK. Could this line (inserted by Syncevolution) be messing up the syncs with the BT car audio? Can it be safely removed? --- Oscar A. Valdez