Quote:
Originally Posted by deadtrend1
Is the dash on the burban metal on the top? I have put the gps antenna under the dash without problems on a few vehicles with plastic dashpads
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Yes it is, but since the angle of the windshield is very steep there is not a lot of "sight" to the sky, especially when I am driving a certain direction I lose signal on the Sirius and sometimes the GPS speedo. I am definitely putting a factory GM antenna up there, so I figure I may as well kill two birds by using a multi antenna, I was hoping to get even more use out of one.
I spoke with a vendor on ebay about them, and it turns out they use one antenna for Onstar and GPS? Thats what they told me anyway, GM splits the signal in the car, the same wire is used for the Onstar and then it also runs to the radio module for navigation. I am probably going to have to get one with the three connections and just try it and see what works. They were a bit confused and said they haven't sold one for retrofit like this before, just people trying to upgrade factory radios, so they aren't sure if what I want to do will work