Will not work with a dash mount radio. This is not a stand alone siren.The item "Motorola, HLN1439G, XTL Siren Kit" is in sale since Tuesday, November 21, 2017. This item is in the category "Business & Industrial\Facility Maintenance & Safety\Surveillance & Alarm Equipment\Two-Way Radios". The seller is "alphawirelesscommunications" and is located in Mankato, Minnesota. This item can be shipped worldwide.