Alleged RF interference between router and vehicle key fob.

I have the following in car video components installed in a Ford Explorer:

WiFi connected cameras (5GHz) Cradlepoint router (5GHz radios only, 2.4 GHz disabled)

Apparently since the installation of these components, the keyfobs for Dodge Chargers and Jeep Cherokees parked nearby work intermittently.

I can't see how it's possible for my components to be leaking into the 300-500 MHz range... and the people on site are having trouble reproducing it consistently enough to do any kind of effective elimination.

The only constant is the Explorer being parked nearby.

I figure getting out there with a spectrum analyzer with the full range of frequencies is really all that can be done at this point.

Just curious if anyone else has seen something funny like this with Dodge/Chrysler key fobs.