Magellan 360 GPS

I'm thinking about getting the Magelln 360 GPS since Costco is offerring it at $239.

I have a few concerns I'm hoping someone can help me with:

1. How well do the ProClips work with the Magellan? anyone have that setup?

2. How do I route the power cable to an outlet without it getting in the way?

3. If I use another method of attaching such as adhesives when removed with they leave marks on dash?

4. Has anyone tried using 3M Command strips to attach? They leave no marks when removed.

Photos would be great.

Thanks all