[WildTurkey]

you think that every gasoline pump is going to be modified to attach a wiring harness to your car to make sure the speedo circuit is intact?

Wireless, not cable. Just like my PC recognizes when my cellphone comes into the room ...

[oceanview]

can you just imagine the chaos, there will be college pranksters jamming these gas station signals just to watch the chaos of people unable to get fuel because the wireless network at the gas station is not functioning.