What is the best/only route to get power from the battery to the rear of the car into the hatch area? It looks like running the cable under the care on the passenger side looks better than the drivers side, but how do I get into the hatch area? Also, what is the best way to get into the hood area from under the car? If anyone has a link to a good post or another site, that would be great. FYI, it is a 2002 TT 225Q.

Greg

Check out the DIY and Tech articles on this site and on www.audiworld.com - look for the "adding an amplifier" procedures. They'll show you how to route the power cable inside the car, behind the trim panels and up into the engine bay through the ECU box.

I took a look and did not see a tech article for the TT.

Ah, sorry about that - I must've missed that last blurb in your original post (I was assuming it was an A4 I guess). I'd make a post in the TT section of the forum and link them here, and chances are you'll get someone with the answers over there.