Where is a good factory area for ground?
I don't want to drill a hole in my car (G37 Coupe).

 

Best ground will be as close to the amp as possible. I think you are just going to have to get over your fear of the drill.

 

Can I drill through anything (wiring, pipelines etc..) if I choose to drill into the car?
I'm mounting my amp on the back seat if that helps.

 

I grounded mine to the top screw that holds the rear seat(folding back part). Should be good for you if youre going to mount your amp right there anyway.

 

wait which screw? if you don't mind a picture would be simply wonderful!

 

well im not gonna take a pic right now, but if you take the rear seat bottom out, youll see the brackets that hold the seat back, theres 2 screws that hold it in. Just use a ring terminal and put it on one of em.

 

Call Greg. He'll drill through anything.

 

Ohhhhhhhh now I get it!! Thanks a bunch, I'll post back with pictures of my install. I'm putting in a Hifonics 2010 brutus and DC level 5 12" .