possible antenna interference with thule cargo box on chrysler town & country rack

[acontino]

I need an answer to a question - The antenna the Cell Phone, the Sirius
Radio and the Positioning Satellite seem too close to
the factory rack on my Chrysler Town & Country and will (might) interfere with good reception with a cargo box mounted to the factory rack - interested in the Thule 604 Ascent roof box model. Wondering if anyone can offer advisement on replacing the factory rack with an aftermarket Thule Rack system that has longer crossbars?

[rack your brains]

Yeah you could easily encounter interference with the Thule 604 cargo box on the Chrysler Town & Country factory roof rack bars. To
avoid this and allow the cargo box to sit off to the side more so as not to
interfere with your antennas etc, I'd definitely replace your factory rack
with the Thule 430 Tracker II base rack system. Choose the TK1 Kits for your
factory tracks (they snap into the current tracks on your rooftop that the
factory rack in mounted to. The current factory rack easily removes to allow
you to install the Thule 430 Tracker II rack system.) Be sure to also choose
at least the 58inch load bars length to allow enough room on the bars to
place the cargo box off to the side.