Glad to hear that you have solved the problem
i hope it stays solved now, i doubt all the 3 beep falses yiou were getting were due to cars with laser assisted cruise control TBH. since i solved my own bout of this issue, i have had only one 3 beep alert and i was able to find the cause for this. an automatic barrier laser sensor in a hotel car park. other than that it stays quiet unless i get hit, which has been happening quite a lot as of late
with the ZR3s and LPPs working together (hopefully) you should be well protected

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V1 3.863 stealth hardwired with custom led remote display and remote mute switch
Laser Pro Park Dual up front
Laser Pro Park Dual on rear
Kustom Prolaser 2
Lti Marksman 20-20 w/speedscope
For my LPP & V1 saves.......
http://www.youtube.com/user/corkguykev