Originally Posted by yutzybrian
About the space, not sure how much it would give you but it should be enough for a couple modules.
Again assuming your dash is the same as mine, you can put any modules underneath the radio compartment. There is a big open space underneath which is accessible if you remove the heated seat switch panel. Just have to make a space in the bottom of the radio compartment to run wires up from the modules.
Once you remove enough plastic, you can attach the factory wiring harness to the aftermarket wiring harness and shove it down underneath the compartment or over to the right kinda behind the glove box.
I was able to separate my antenna wire from the rest, don't remember how. Post up a picture and it may jog my memory.