[Vikesrock]

Yes, this in the rules, here you go:

Originally Posted by FRC Manual

<R67> The control system is provided to allow wireless control of the ROBOTS. The Operator
Interface, Robot Controller, speed controllers, relay modules, radio modems, batteries,
battery charger, AC adapter, and 9-pin cables shall not be tampered with, modified, or
adjusted in any way (tampering includes drilling, cutting, machining, gluing, rewiring, etc.),
with the following exceptions:
 Dip switches on the Operator Interface may be set as appropriate.
 User programmable code in the Robot Controller may be customized.
 Speed controllers may be calibrated as described in owner's manuals.
 The fuse on the Spike relay for the air compressor may be replaced with a 20 Amp Snap-
Action circuit breaker.