Try this:

1) Disconnect battery ground cable
2) Insert an ammeter/DVM inline If your meter is fused on one lead with a 1/4 amp fuse, use the 10 amp jack; when you first connect it, a surge of current will flow of well over 1/4 amp and blow the little fuse. This is why using a digital meter is so helpful, even on the 2 or 10 amp scale, you can read currents as low as .005 amp. If you see ZERO current, open a door and verify a dome light comes on (you will see an amp or two of current), if you can't get the light to come on, your meter fuse is blown or you don't have it connected right.
3) With doors and trunk closed and key off and removed from the ignition, wait at least 3 minutes. (This allows the security system and other 'stuff' to get to it's "resting" state, looking at the meter too quickly will make you think you have a problem you do not really have)
4) Observe the meter - ANYTHING over 60mA is a PROBLEM.


Another thing:

I've owned three Crossfires over seven years. I've made thousands of posts here area probalby read over 100,000 posts - ONLY ONCE have I seen it where replacing a starter on a Crossfire fixed anything. The "Click click Click" can be poor connections, heavily corroded battery terminals or an open or missing jumper from engine block to frame. I remain almost 100% convinced your starter is not the problem - but I"m not there and after 34 years of component-level electronic troubleshooting I can tell you one thing: Sometimes, I need to BE there to really understand what's going on. If you do not understand current flow and the relationship between voltage/current and resistance, you may have a hard time with this. Unfortunately, most shops you take the car to understand little about such concepts. So, you are probably almost better off learning on your own.