Hi Guys
Just thought I would contribute to this, I have a 2005 GUIV and I had the same problem where do I put my radio's as in my last 4X4 (Maverick) I had a full width overhead console and it made it simple but getting back to my new one I have installed them on a double bracket utilising the ash tray mounting in the console, by removing the ash tray it will leave a mounting bracket exposed and I fabricated two screw together brackets that utilised the ash tray mount.
The mic brackets are mounted on the side of the console utilising the existing console screw holes with a spacer and longer screws.
Therefore no holes needed to be drilled anywhere. My radio's are a Codan HF and a GME TX3400 both being remote head type radio's, with the main bodies and speakers of the radio's mounted on the cargo barrier.
As you can see in the photo the mic cables are out of the way and the drink holders are also left clear for the odd stubby or two.