Have you looked into your door speaker replacements yet? I just ordered the Beat-Sonic plug and play but I have a JL audio 360W Amp and two older Earthquake 8" shallow woofers that I want to somehow build a customer under seat or low profile enclosure for.
I have been searching high and low for any signs of custom audio systems with speaker specifications as well as harness interface kits. Outside of the plug and play in dash amp that's going around, eoes anyone have any SA on modifications and upgrades on the audio system? Is this build common...