Want to make sure you can get that driver's attention about to pull out in front of you?  The Nautilus Wolo 419 horn with it's 139 db output ensures you will have their undivided attention!  The horn is perfect for the 2005-2013 R1200RT and measures 12cm H x 13cm W x 8cm D, with a draw of 12V / 14A during non-stop operation.  The included installation has a custom designed stainless steel mounting bracket, relays, and all wiring pre-cut and terminated with connectors.