H3 Amp Ground Wire Location

[smileitzvincent]

I have a subwoofer installed in my trunk, but it's been acting up, and I have a quick question for those of you with subs in the back. I have the stock factory monsoon headunit. and was wondering where you grounded your amp's ground wire at? I have mine grounded right behind the back seats into what I think is the frame. Any other suggestions?

Also, for the amp 12volt on switch, did you splice into the pink wire behind the headunit or closer to the amp?

As well as the PAC LOC, where did you hook it up? Behind the head unit or the amp?

Thanks alot!