Hiding wires....

I just added a piezo siren to the inside of my car in addition to the regular 6-tone under the hood.  I used a relay and had no problem wiring it all together.  It took me a while to figure out what wires to tap for power and such since all the alarm wires were previously wrapped in wire tape.  Now that everything is all connected, what is the best way to go about hiding all the wires.   I dont want someone to just rip the red wire and have the whole thing useless.  It will be extremely hard ot tape all the wires again since they all are up in tight, hard to reach areas.  Should I use wire loom? 

Also, I noticed that if a theif's ears can handle the pizeo siren under the dash, the brain is in somewhat plain sight.  There is very little slack with all the wires so I really cant move it much.  What is the best way to cover that up as well?

Thanks for all your help.   Eric

let me tell you it took me 8 hours to hide my alarm wires once my instaall was done.. that is how good it is... a theif will never even try.. they'll go for my battery.. but my hood is locked so.. bye bye..

hide the brain somewhere in the dash.. like behind

thats exactly what i was just thinking about... i've come up with the conclusion to install a piece of sheet metal so that i am able to slightly bend it and drill holes into it so that it will be able to take off when using nuts and bolts but unable to penatrate with a screw driver or wire cutters that the thiefs may use to try and pry it open.

what do you think?