[Andy A.]

For competition purposes, yes, it must be the exact same part. In the meantime you can likely get just about any wireless router to work, although the exact configuration steps required will be up to you. A better option for testing and limited driving is probably to invest in a long tether till you can get a new router.

Dare I ask how you fried it? I'd be a little surprised if connecting it directly to 12v accidentally could fry it. Was it connected to the power converter, and have you verified that it is operating correctly?