*yebo
6 sides siya so dapat hex screws should work. pero yung bottom part niya parang curved and shallow (dunno kung dahil na rin sa pagkaluma) that's why the hex screws won't "bite". i'll post a picture when i get the chance.

*benchman
thanks for the info. so i think mas ok na i-troubleshoot na lang yung stock antenna.

may improvement naman ang fm reception from my old HU. pero minsan may static lang talaga at nawawala ang signal. can't help but compare it with our other vehicle (civic vti with a motorized antenna and stock HU) na malinaw reception even sa parking.