Never ran a mirror in any of my cars. Only reason I had a radio was because of my sponsor which was Mid State Radio and my spotter only talked to me under caution. Flemington need all my attention for sure. When my kids stated racing I told them if your looking behind you you ain't watching what's going on in front of you. The guy behind you is behind you forget about him. You need to listen and look for shadows in your peripheral vision and just drive.