Im looking to run a + line from the battery to my amp in my trunk.... wondering if u guys drilled or if theres a precut hole anywhere where i could fit some 4 gauge wire through...

 

the ecu box has a gromet towards the front of the engine and then behind the ecu, there's an opening

 

I took off my fender, ran 2 gauge through there and then bolted it back up... you can only see it when my door is open.

edit: you dont have to remove the fender completely, just unbolt the top and flex it.

 

There is a little triangular gromet just towards center from the drivers side on the firewallalmost next the the ecu it fits atleast 4g the ecu is the best idea but hard to get a large gauge wire thru

 

I drilled in the computer box and then sealed it with silicon.

 

ran my amp wire through the trunk release cable hole place thing, then sealed the hole from under the hood with foam

 

Take the cover off the fuse box inside the car and open the main under the hood, place a flashlight on the one under the hood, look thru the fuse box in the car for light, take a piece of strong plastic rod and bend it a little and carefully push thru from either side, when you see it on the other end tape the power wire to it like crazy and pull it thru, piece of cake....

 

Look up DIY tutorials for installing a boost gauge. The triangular grommet errbody is talking about is depicted in some tuts.