Questions about Velleman K8094

I have the K8094 and i want to use it to emulate my Warningcenter in my Car because it supports 12V. Now my question is, How much Power can i provide on the external Controlwire? specialy the Ply function Pin 3? I will also have only one Sound on the Chip, so i will not need to use Pin 6 for reseting every time once a message was played? Thanks for your Help. Regards Tim

For those who are interested, I want to replace the Uggly Gong Sound of my BMW X5 with the new warning sound of the actual BMW Sounds. So i need to Connect Pin T1 till T3 with the External Control of the Velleman. Not sure yet how much power are going thru these wires but that shouldnt be that much because its a signal created from The board computer and the speaker by itself has a separate 12 V connector.

The external control wires only accept dry contacts, you cannot supply power to these wires.