Thanks for your help. I ended up updating all the modules after adding +K302 to CAS and NFRM. I then checked the stalk menu and enabled both lights and horn. My panic alarm now works.
Hi ERIK335i, when you mentioned about updating all the modules after adding VO. What selection is it exactly? Currently I am using SG_CODIERN for most of the coding as per the DIY pdf.
Planning to retrofit FRONT PDC and thus would need to add VO $508 (Front and Rear PDC) to CAS and NFRM (I have the instruction for doing that) but I am not sure how to code ALL modules.
Appreciate your help