I have a 99 TL with a alpine iva-w200 head unit.. I need help getting the wire thru the firewall , or where to drill a hole?? and best place to ground the amp in the truck??? Pics will be greatly appreciated

 

sorry no pics.. run it thru the same hole that has the wires going through it leading to the inside of the car from engine bay. behind the steering wheel. its like a rubber boot. i connected my ground to my upper seat bolts the middle one.. couldnt find a place to ground it while being lazy just sand the area first

 

It should be the same as the CL. Check the DIY thread.