Stereo Install Questions

[HummerNewbie]

Originally Posted by BuzzH3

Thank you for your responses.

From my understanding, you don't have to hook up the speed sensor wire, but it makes the nav system much more accurate if you do.

I also went with the GEX-P10XMT XM receiver. I am looking forward to trying the NavTraffic function

Hope it helps. The install is really pretty simple. The speed sensor does help with the accuracy but mine is really very accurate without it. Whenever I leave my house it shows me a block or two north of where I actually am but corrects itself within a 1/4 mile or so. I think it really has to do with all the trees but don't know. XM Traffic is pretty cool and I think you will be happy with it.