Just figured i'd follow up on what i've found. this site, actually has a lot of interesting facts. http://www.radiolabs.com/Articles/wifi-antenna.html
Evidently, some car's motion sensing alarms also produce a large amount of intereference.
and, lastly. the site above does sell numerous external antenna. Linksys seems to have jumped on the bandwagon too: http://www.linksys.com/servlet/Satel...=3978991233L00
I've ordered one from the radiolabs site. and will most-liekly place it at the rear of the Vibe, with the radio & satelite ones. this should hopefully keep it away from the engine enough to fix my problem.