been there last 2 days ago, jemson installed my air compressor powered truck horn. sabi niya first time niya daw magkabit ng ganun so medyo nag-alala ako ng konti. but after a whole day of relentless efforts and hard work... voila! everything was perfect, error-free nagulat lahat ng pinatunog na namen busina. pati ako nagulat sa lakas... =)