Will the AP3702 brackets compatible with the AP3802's?
Cisco Aironet Series 2800/3800 Access Point Deployment Guide
AIR-AP-BRACKET-1 (packaged with APs like 3702 and 2800) and AIR-AP-BRACKET-2 (optional alternate bracket). are compatible
AIR-AP-BRACKET-3 is not compatible with the 3800 series