Neil Duncan

I have a 1991 cadillac fleetwood brougham and I have 6 dc audio level 4 12 and running 3 mmats 3000.1 currently my installer is telling me to run the port Thru the back deck but I have no back window for the best to reflect off so I'm telling him I should go through the armrest need help with a bandpass bOx what do you guys suggest would be the best build for this car