Originally Posted by nufkts
I just installed a pioneer dvd/navigation system in my TA. It is also XM ready, with the slope of the windshield being 20% you can safely hide it under the dash with no reception problems what so ever, and it is completly hidden. Pull the main dash and there are 2 speaker mounts that are not used by GM anymore, the antannea are magnetic so they stick perfectly there. No unsightly XM antannae to be seen it is hidden^^ just thought I would help for those of you like me who dont like extra things being seen that don't need to be seen. Hope this helps. 1 more note the dash being plastic will not interfere with reception either^^