? about fuse blowing

I just added 4 autoloc door solenoids to my Clifford MAtrix rs3.5 2way alarm. I used relays like the instructions said for the solenoids and have them all tied in to separate channels since i brought a dei channel expander. Now all of the wires that run to the relay that are 12volt constant are fused with 10amp fuses (what came with the door solenoids). Now the door poppers work fine the first time but then the fuse blows for that particular solenoid. The other doors will work one time as well and then the fuse blows. Does anyone know what may be the problem. Here are some things that I think may be affecting it.

Its all running 12gauge wire.(The door silenoids came with a small 16gauge wire for power but I used 12gauge instead since that is what is coming from the relay). The ground that came with the solenoids is a lot thinner, like 16gauge wire. All of the 12volt constant wires are tied in together (after the fuse holders) so they are all getting power from one main wire that is tied into 12volt constant. Looks a little something like this:

If anyone can suggest what may be the problem I would appreciate it. I'm going to try to go up to a bigger fuse but I'm not sure if that will help.

ok lets see if this image works:

[IMG]http://upload.houston-imports.com/uploaded/door solenoid wiring.JPG[/IMG]

They are 30amp bosch relays. Here is how I wired them (as per autolocs instructions):

http://caraudiogear.net/relay%20wiring.JPG

make sure the door lock output is set to pulse and not to 3.5 seconds