I have an older Kenwood Sirius receiver in my Suburban and here is where it was mounted:
I made these changes, what do you think?
The next thing I am going to do is put an auxillary outlet in the front of my console to hide the cord to the magellan. I plan on having it connected to my auxillary so it turns itself on whenever I start my truck.
I also want to fill the gaps beside the sirius receiver. What would be a good material to use? I do have a dremmel for fabricating, but not much knowledge on materials.