where does the antenna gromet come out on the engine side of the firewall? how close to the battery, i have a side mount batt, which raises my next question, is there some sort of adapter that i have to purchase to get the best connection possible?

 

In my 01 the antenna goes into the HVAC housing then through the firewall. Go to the auto parts store and get an extended post. I have one on my side post battery and it fit fine without a problem.
http://www.crutchfield.com/App/Produ...ASML&g=713