QoS Policies on Autonomous APs

So after some digging, I think I might have this figured out.

The AP config guide has a section on giving priority to Voice traffic, but it doesn't show the CLI alternative to the GUI configuration section in the guide:
Cisco IOS Software Configuration Guide for Cisco Aironet Access Points, 12.2(13)JA
Giving Priority to Voice Traffic
The 7921 Deployment guide only gives you the CLI commands "best practices" for the 7921, but doesn't say which to which interface(s) the service-policy should be applied:

Cisco Unified Wireless IP Phone 7921G Deployment Guide
Configuring QoS Policies for the Network (page 19)

class-map match-all RTP
 match ip dscp ef
class-map match-all SCCP
 match ip dscp cs3
policy-map Voice
 class RTP
 set cos 6
class SCCP
 set cos 3
interface X
 service-policy input Voice
 service-policy output voice

Putting both config guides together results in this:

class-map match-all RTP
 match ip dscp ef

class-map match-all SCCP

 match ip dscp cs3

policy-map Voice

 class RTP

 set cos 6

class SCCP

 set cos 3
!
interface Dot11Radio1.150 <-this is the radio sub-interface for the Voice SSID/VLAN

 encapsulation dot1Q 150
 service-policy input Voice

 service-policy output Voice
 no ip route-cache
 bridge-group 150
 bridge-group 150 spanning-disabled
!
interface FastEthernet0.150 <-this is the ethernet sub-interface for the Voice SSID/VLAN
 encapsulation dot1Q 150
 service-policy input Voice
 no ip route-cache
 bridge-group 150
 bridge-group 150 spanning-disabled
------------------------

QoS Policy on switch/router with AP needing Voice prioritzation connected:
ip access e SCCP
  p t any eq 2000 any
  p t any any eq 2000
ip access e RTP
  p u ay range 16384 32767 any
  p u any any range 16384 32767
class-map match-all SCCP
  match acc name SCCP
class-map match-all RTP
  match acc name RTP
policy-map voice
  class RTP
   set dscp ef
  class SCCP
   set dscp cs3
int <-interface with IOS AP (no LWAPP traffic)
service-policy input voice
---------------------------------------
dot11 ssid voice
vlan 150
auth op eap eap_methods
auth ne eap_methods
auth ke wpa
admit-traffic <-shown in 7921 guide "Call Admission Control Settings"