i called around for almost two hours and this was by far the best choice. i got the viper 5901 and it is fantastic, they showed me how to use all the features and gave me a great price. they even cleaned up the wiring that i had done for various switches and such and tied them all upu and put wire loom around them to make it look good. very clean install, these guys at progressive really know what theyre doing. A++
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