innuen6o Posted March 14, 2007 Report Share Posted March 14, 2007 Anyone know if such a thing exists? I'd rather have just one antenna on the outside of my car instead of two. Quote Link to post Share on other sites
cntrylvr79 Posted March 14, 2007 Report Share Posted March 14, 2007 no Quote Link to post Share on other sites
MisFit Posted March 14, 2007 Report Share Posted March 14, 2007 no Quote Link to post Share on other sites
George01v6 Posted March 14, 2007 Report Share Posted March 14, 2007 Nope, two different frequencies. For a patch antenna design, as are used in XM and GPS, they are designed for a single frequency. Quote Link to post Share on other sites
chazmink Posted March 14, 2007 Report Share Posted March 14, 2007 I suggest you mount the GPS on your dash. I have it that way in two cars and it works fine. I haven't tried that with XM but suspect it will not work. There are 12 or more GPS satellites so I think the antenna always has a good line of sight from the dash. Quote Link to post Share on other sites
cntrylvr79 Posted March 15, 2007 Report Share Posted March 15, 2007 There's 24 though only 12 are over the states at any given time. Quote Link to post Share on other sites
myvekdrifters Posted September 17, 2008 Report Share Posted September 17, 2008 I remember reading one person was able to combined the 2 antenna together using a "Y" gps adapter. Basically two signal antenna from the p-10xmt and the navigation unit to read from the adapter which access from one antenna. Notice the xm antenna and the gps antenna uses 2 different port size. You will need 2 extended gps wire to the adapter and one gps antenna. I still yet to confirm this by finding where I have read this thread. He had pictures of the combine unit and install. Quote Link to post Share on other sites
soccermeister2 Posted September 18, 2008 Report Share Posted September 18, 2008 yea no can do, my xm is on the dash and works fine. Quote Link to post Share on other sites
impalacustom Posted September 18, 2008 Report Share Posted September 18, 2008 Grab yourself a GM Sharkfin antenna. Put your gps and XM in it just like GM does. One antenna with 2 recievers in it. Quote Link to post Share on other sites
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