[HummerNewbie]

Originally Posted by marin8703

Hey Buzz
I am trying to figure out wether to instal the nav myself or take it to a pro. I would rather do it myself if I can because everytime i have someone else install or do something for me they screw up or break something else.

Have you don't any installs in the past? It is a fairly simple install but if you have never do it before, you might want to take it to a reputable shop.

Originally Posted by marin8703

Where did you install you gps antena and if you are installing xm or serius where this you install that antena too and how and where did you route the cables?

I am running the D1, not the Z1 but as far as I know the install procedures are almost identical. I ran the GPS antenna across to the drivers side, up the a-pillar and the back next to the roof rail. For the XM antenna I did the same thing but on the passenger side. You can not see the antennas unless you are above the truck. I do have the marker lights which do help hide the antennas but even without them they are fairly hidden up there.

Originally Posted by marin8703

And my second which may be a little stupid is this . In the manual it shows the wires going from the nav to the speakers having rca concectors on them, but as far as i know, which is not so far, the h3 has all the wires from the speakers on a single large conector which plus to the back of the unit. Have i understood the manual right or am i confused ? How is the conection to the speakers actually made?

You will need to get the wiring harness for the H3. This harness basically duplicates the connection in the back of the factory head unit. You will connect the wiring from the Pioneer harness to the adapter harness. All your connections are made through this harness and you will not need any RCA cables. The only time you would use RCA cables is if you were connecting additional equipment such as amps, crossovers and EQs. Hope this helps.