In the quest for my perfect audio setup, I installed a Toyota 16814 radio. This radio is plug and play (using gray plugs) and fits perfectly. Also, unlike the stock radio, it has a cd-changer port. This allowed me to install a USASpec BT-35TOY bluetooth adapter. This has a wired mic for handsfree calls which I found a great place for.
The OEM alarm has a status LED in a switch blank spot. This has a mic on it for some reason. Probably a Toyota handsfree kit that I didn't have. Its behind the cluster of holes next to the LED. Anyway, I dissected the mic that came with my bluetooth adapter and put it in place of the OEM mic using the rubber sleeve from the OEM mic. A perfect fit!
The OEM alarm has a status LED in a switch blank spot. This has a mic on it for some reason. Probably a Toyota handsfree kit that I didn't have. Its behind the cluster of holes next to the LED. Anyway, I dissected the mic that came with my bluetooth adapter and put it in place of the OEM mic using the rubber sleeve from the OEM mic. A perfect fit!