No but you could fit any 16 ohm internal if you wish wouldn't bother with the tamper pair either.
Iirc. 16&17 are the tamper terminals at the panel for the int siren so you could fit link then use +&- to drive the speaker.
I'd check with the manual on the terminals but I'm sure there's tamper pair and +&- for the internal :)
e manno
January 2015