fiat

2012 Fiat 500 JL Audio 10tw3 ported JL Audio HD900/5

I have a 2013 Fiat 500 Abarth (with Beats factory audio) into which I am planning to install a Clarion NZ503 NAV HU and Alpine amps/speakers. When I talked to the service manager at the local Fiat dealer and told her what I was planning, her response was "fine, but your odometer is going to...