Wish I had seen this entry earlier!!!
Tasxfire04 was over at the house and picked up his membership goodies and I only noticed that the NEW antenna is @ 1/4 the size of the Original Roady and about 1/8 the size of the "PUCK" thats on my Bonneville.
The Bonneville has a Pioneer head unit with Pioneer XM receiver and the antenna is the first version of XM and is the standard size you see on the trunk and/or roof of most cars.
I'll compare the size of the unit itself next time I see Tom.