I have rSAP running successfully on my Galaxy S2 with Jelly Bean AOSP ROM (see viewtopic.php?f=32&t=525) and I also installed the DUN plugin. Works perfectly with my VW RNS 510, I did not have to activate the kernel module. Only now I cannot transfer the phone book to the car as long as DUN is active, I get a "Phone book transfer failed" error message from RNS 510 when I connect with an updated contact list or try to update phone book manually from RNS 510 menu. Any ideas? Oh and thanks again for the beautiful software!