[rideair]

In regards to your sound system.

In my 1988, First, I went with a four-phase approach in sound deadening. A Dynamat type product, Mass Loaded Vinyl and 3M SM600L, along with MASS-Backing on the new carpet to reduce noise, vibration, etc..

Replaced the radio head unit, with a new Bluetooth head factory replacement (no cutting), that had four speaker outputs (two front/two rear), along with four RCA outputs for an Alpine amp mounted under the center area of the front seat.

Front 3" speakers were replaced with Alpine's running off the head unit. Ran the second set of head speaker outputs to "two" Alpine 8" powered sub-woofers, mounted under the front seat drivers/passenger area.

The four RCA outputs went to a 4-channel Alpine power-amp that ran a set of 3-way 4x10's in the rear factory location, and a set of 6.5's, 3-ways in the kick-panels.

You do what I did, and it will be more than you'll ever need.

Stay Healthy,