PUTCO GMC Sierra HD - 8ft Bed (Does not fit Dually Bed). - Traditional Locker Side Rails Clamp Mount Horn Ring Cycler 2 (HRC2) IP67 rated for dust Color:Red/Blue/Amber fits_2014-2016`Audi`Q5`TDI Premium Plus~2016`Audi`Q5`TDI Premium Plus S-Line~2014-2016`Audi`Q5`TDI Prestige~2016`Audi`Q5`TDI Prestige S-Line~2010`Audi`Q7`Base~2010-2015`Audi`Q7`Premium~2011-2015`Audi`Q7`Premium Plus~2010-2015`Audi`Q7`Prestige AWE3015-32086

PUTCO GMC Sierra HD 8ft Bed (Does not fit Dually Bed). Traditional Locker Side Rails Clamp Mount Horn Ring Cycler 2 (HRC2) IP67 rated for dust Color:Red Blue Amber fits_2014 2016`Audi`Q5`TDI Premium Plus~2016`Audi`Q5`TDI Premium Plus S Line~2014 2016`Audi`Q5`TDI Prestige~2016`Audi`Q5`TDI Prestige S Line~2010`Audi`Q7`Base~2010 2015`Audi`Q7`Premium~2011 2015`Audi`Q7`Premium Plus~2010 2015`Audi`Q7`Prestige AWE3015 32086 Horn Ring Cycler 2 (HRC2) for hands free siren control when rotary is on Cycle position for pursuit and rescue situations Mounting screws are located outside of the sealed lens reflector assembly eliminating water infiltration