Originally Posted by Burns098356GX
Settings>Bluetooth>Advanced then click the message access box.
At least that's how it it on my phone, my HTC sensation might be different.
Sent from my Nexus 7 using FF Mobile
Nexus 4 doesn't have the same options under the standard settings or the messaging settings. Not sure it supports Bluetooth MAP, but I'm going to look more into it now. Will edit this post if I find anything.