LED Scanner

I'm trying to attach a scanner to my alarm.  I'm having problems figuring out which wire to tap into for the yellow wire to the scanner.

I've read some posts and they all mention a orange wire to the brain.  I guess mine isn't the same as those mentioned.  Here's a pic of my brain and setup.  Can someone help me find out which wire to use?

Thanks in advance.

does this look correct?

Thanks in advance.

i have a quick question...is the scanner supposed to turn on as soon as i turn off the car or when i arm the alarm?  i was thinking that it was going to kick in when i turn the alarm on, but it turns on as soon as i turn it off.  i just want to make sure that i did it correctly.

will the scanner drain my battery since it's going to be on, or is it something that is drawing too little voltage to affect it?

thanks again, i can always get good information on here.

the scanner turns on when I put the car in park or neutral as well.  Is this supposed to happen?

It turns off as soon as I put it in drive, but just curious as to why it would turn on when it does.

everything should be fine if wired up like this?

i'll give it a try later on tonight.  thanks