Figure out what type of switching the horn uses. is it a positive voltage or a negative voltage. Is the horn earthed and a positive voltage is applied to make it activate. Then you would switch positive through the relay. truck may use a 24 volt DC power system then horn may need +24 volt instead of 12V . If truck is 24 Volt then alarm system may need a 24Volt to 12 Volt converter device to power alarm system. You need to check what truck uses 12V or 24 V before connecting alarm to truck power.
one thought is this alarm covered under a warranty ?
If you alter the installation you may void any manufacuturer's warranty - It might be an idea to get an authorised Viper installer to integrate the horn into the alarm system to keep the warranty in place.
you might want to ask viper for an approved installer near your location. http://kb.viper.com/customer/portal/emai...one thought is this alarm covered under a warranty ? If you alter the installation you may void any manufacuturer's warranty - It might be an idea to get an authorised Viper installer to integrate the horn into the alarm system to keep the warranty in place. you might want to ask viper for an approved installer near your location. http://kb.viper.com/customer/portal/emails/new?b_id=907
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Figure out what type of switching the horn uses. is it a positive voltage or a negative voltage. Is the horn earthed and a positive voltage is applied to make it activate. Then you would switch positive through the relay.
truck may use a 24 volt DC power system then horn may need +24 volt instead of 12V . If truck is 24 Volt then alarm system may need a 24Volt to 12 Volt converter device to power alarm system. You need to check what truck uses 12V or 24 V before connecting alarm to truck power.
one thought is this alarm covered under a warranty ?
If you alter the installation you may void any manufacuturer's warranty - It might be an idea to get an authorised Viper installer to integrate the horn into the alarm system to keep the warranty in place.
you might want to ask viper for an approved installer near your location.
http://kb.viper.com/customer/portal/emai...